]> Ontology of units of Measure (OM) 測定単位のオントロジー (OM) 2.0.38 http://www.ontology-of-units-of-measure.org/vocabularies/om-2/ 2022/08/04 The Ontology of units of Measure (OM) 2.0 models concepts and relations important to scientific research. It has a strong focus on units, quantities, measurements, and dimensions. 測定単位のオントロジー (Ontology of units of Measure; OM) は，科学技術にとって重要な概念及び関係をモデル化する。OMは，単位・量・測定・次元に特に焦点を当てている。 http://www.wurvoc.org/images/vocabularies/om-logo.jpg http://www.wurvoc.org/images/vocabularies/om-illustration.jpg Hajo Rijgersberg, Don Willems, Jan Top alternative label 標識の別名 longcomment 詳細な注釈 long comment has longcomment 詳細な注釈がある symbol 記号 has symbol 記号を持つ alternative symbol 別の記号 has alternative symbol 別の記号を持つ abbreviation 略記 has abbreviation 略記がある unofficial label 非公式な記号 has unofficial label 非公式な記号を持つ Used to specify labels that are used in e.g. every day speech but are not defined in any standard. unofficial abbreviation 非公式な略記 has unofficial abbreviation 非公式な略記がある Used to specify abbreviations that are used in e.g. every day speech but are not defined in any standard. quantity 量 A quantity is a representation of a quantifiable (standardised) aspect (such as length, mass, and time) of a phenomenon (e.g., a star, a molecule, or a food product). Quantities are classified according to similarity in their (implicit) metrological aspect, e.g. the length of my table and the length of my chair are both classified as length. 量とは，ある現象（例: 星・分子・食品）の定量化できる（標準化された）性質（例: 長さ・質量・時間）の表現である。量は（暗黙の）計量的類似性に従って分離される。例: 机の長さ及び椅子の長さは双方とも長さに分類される。 has phenomenon 現象がある has context 文脈を持つ has value 値を持つ commonly has unit 通常は単位を持つ commonly has unit of measure 通常は測定単位を持つ This property indicates a commonly-used unit. has aggregate function 集計関数を持つ function 関数 first 最初 last 最後 minimum 最小 maximum 最大 sum 合計 average 平均 count 回数 standard deviation 標準偏差 product 積 median 50th percentile 10th percentile 20th percentile 25th percentile 30th percentile 40th percentile 60th percentile 70th percentile th percentile 80th percentile 90th percentile has quantity 量を持つ unit 単位 unit of measure 測定単位 unit of measurement 測定の単位 A unit of measure is a definite magnitude of a quantity, defined and adopted by convention or by law. It is used as a standard for measurement of the same quantity, where any other value of the quantity can be expressed as a simple multiple of the unit. For example, length is a quantity; the metre is a unit of length that represents a definite predetermined length. When we say 10 metre (or 10 m), we actually mean 10 times the definite predetermined length called "metre". 測定単位とは，量の確定的な大きさであり，慣例又は法律によって定義し採用されている。同じ量の測定の標準として用いられ，他の如何なる量の値も当該単位の単純な倍数として表わせる。例えば，長さも量である; メートルは長さの単位であり，確定的な所定の長さを表している。10メートル（又は10 m）とは，「メートル」と呼ばれる確定的な所定の長さの10倍を，実際に意味している。 prefixed unit 補助単位 has unit 単位を持つ has prefix 補助単位を持つ unit multiple 単位倍量 has factor 因子を持つ singular unit 単数単位 compound unit 複合単位 unit multiplication 単位乗算 has term 1 has term 2 unit exponentiation has base has exponent unit division has numerator has denominator prefix A prefix is a name that precedes a basic unit of measure to indicate a decimal or binary multiple or fraction of the unit. Each prefix has a unique symbol that is prepended to the unit symbol. For example, an electric current of 0.000 000 001 ampere is written by using the SI-prefix nano as 1 nanoampere or 1 nA. measure A measure combines a number to a unit of measure. For example, "3 m" is a measure. has numerical value scale measurement scale schaal meetschaal interval scale ratio scale has off-set point A point is an element of an interval scale or a ratio scale, for example, 273.16 on the Kelvin scale indicates the triple point of water thermodynamic temperature. fixed point fixed zero point has point has scale dimension Dimensions are abstract properties of units and quantities neglecting their vectorial or tensorial character and all numerical factors including their sign. has dimension has SI length dimension exponent has SI mass dimension exponent has SI time dimension exponent has SI electric current dimension exponent has SI thermodynamic temperature dimension exponent has SI amount of substance dimension exponent has SI luminous intensity dimension exponent system of units In order to achieve a coherent, interdependent set of units of measure in the wide variety of units that exist, units are organised in systems of units. A system of units is based on a set of units chosen by convention to be the system’s base units, units that are considered to be mutually independent (i.e., can’t be expressed in terms of each other). has base quantity has base unit has derived quantity has derived unit application area An application area groups quantities and units of measure for application areas such as scientific disciplines (e.g., thermodynamics, mechanics). uses quantity uses unit LaTeX command typeset by LaTeX command OMLaTeX command that can be used to render this quantity or unit. LaTeX symbol has LaTeX symbol LaTeX formatted symbol OMLaTeX formatted symbol may include commands such as \unit and \E as defined in OMLaTeX. alternative LaTeX symbol has alternative LaTeX symbol alternative LaTeX formatted symbol An alternative OMLaTeX formatted symbol, which may include commands such as \unit and \E as defined in OMLaTeX. geometry geometrie length lengte 长度 Length is the amount of space between two geographical points along a curve. It is a base quantity in the International System of Units and other systems of units. Length is speed times time. The metre, a base unit of length in the International System of Units, is defined in terms of speed of light during a certain time interval. l L breadth breedte b depth diepte d distance afstand 距离 d height hoogte h thickness dikte d δ width breedte w radius straal 半径 radius r diameter diameter 直径 d circumference omtrek 圆周 C area oppervlakte 面积 oppervlak Area expresses the two-dimensional size of a defined part of a surface, typically a region bounded by a closed curve. It is a derived quantity in the International System of Units. Area is length squared. A S volume volume 体积 inhoud Volume is a measure of how much three-dimensional space any phenomenon occupies. It is a derived quantity in the International System of Units. Volume is length to the power 3. V v angle hoek 角度 plane angle Angle is the ratio between an arc and its radius. α β γ θ φ solid angle ruimtehoek 立体角 Solid angle is the ratio of the surface of a portion of a sphere enclosed by the conical surface that forms an angle to the square of the radius of the sphere. Ω ω angular size length fraction lengtefractie slope SI prefix yocto yocto y 1e-24 zepto zepto z 1e-21 atto atto a 1e-18 femto femto f 1e-15 pico pico p 1e-12 nano nano n 1e-9 micro micro μ u 1e-6 milli milli m 1e-3 centi centi c 1e-2 deci deci d 1e-1 deca deca deka da 1e1 hecto hecto h 1e2 kilo kilo k 1e3 mega mega M 1e6 giga giga G 1e9 tera tera T 1e12 peta peta P 1e15 exa exa E 1e18 zetta zetta Z 1e21 yotta yotta Y 1e24 metre meter 米 meter m path travelled by light in vacuum during a time interval of 1/299 792 458 of a second length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second The metre is a unit of length defined as the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second. The metre is a unit of length defined as the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second. The metre is a base unit in the International System of Units. length unit yoctometre yoctometer The yoctometre is a unit of length defined as 1.0e-24 metre. ym zeptometre zeptometer The zeptometre is a unit of length defined as 1.0e-21 metre. zm attometre attometer The attometre is a unit of length defined as 1.0e-18 metre. am femtometre femtometer 1/(10^15)米 The femtometre is a unit of length defined as 1.0e-15 metre. fm picometre picometer 1/(10^12)米 The picometre is a unit of length defined as 1.0e-12 metre. pm nanometre nanometer The nanometre is a unit of length defined as 1.0e-9 metre. nm micrometre micrometer 微米 The micrometre is a unit of length defined as 1.0e-6 metre. μm millimetre millimeter 毫米 The millimetre is a unit of length defined as 1.0e-3 metre. mm centimetre centimeter The centimetre is a unit of length defined as 1.0e-2 metre. cm decimetre decimeter The decimetre is a unit of length defined as 1.0e-1 metre. dm decametre decameter The decametre is a unit of length defined as 1.0e1 metre. dam hectometre hectometer The hectometre is a unit of length defined as 1.0e2 metre. hm kilometre kilometer 公里 The kilometre is a unit of length defined as 1.0e3 metre. km megametre megameter 百万米 The megametre is a unit of length defined as 1.0e6 metre. Mm gigametre gigameter 10^9米 The gigametre is a unit of length defined as 1.0e9 metre. Gm terametre terameter 10^12米 The terametre is a unit of length defined as 1.0e12 metre. 10^9 km Tm petametre petameter 10^15米 The petametre is a unit of length defined as 1.0e15 metre. Pm exametre exameter 千兆兆米 The exametre is a unit of length defined as 1.0e18 metre. Em zettametre zettameter The zettametre is a unit of length defined as 1.0e21 metre. Zm yottametre yottameter 10^24米 The yottametre is a unit of length defined as 1.0e24 metre. Ym prefixed metre 1 1 ångström ångström angstrom angstrom The ångström is a unit of length defined as 1.0e-10 metre. The unit is often used for wavelengths of electromagnetic radiation or to express the sizes of atoms and molecules. Å 1.0e-10 Birmingham gauge G GA chain The chain is a unit of length defined as 20.1168 metre. ch 20.1168 fathom (US survey) US survey fathom The US survey fathom is a unit of length defined as 1.828804 metre. 1.828804 fermi fermi The fermi is a unit of length defined as 1.0e-15 metre. 1.0e-15 foot (international) international foot 英尺（国际） The international foot is a unit of length defined as 3.048e-1 metre. ft 3.048e-1 foot (US survey) US survey foot The US survey foot is a unit of length defined as 3.048006e-1 metre. ft 3.048006e-1 French gauge Fr Fg FR F CH Ch furlong (international) international furlong The international furlong is a unit of length defined as 201.168 metre. 201.168 inch (international) 英寸（国际） international inch The international inch is a unit of length defined as 2.54e-2 metre. in 2.54e-2 micron micron The micron is a unit of length defined as 1.0e-6 metre. μ 1.0e-6 mil (length) thou The mil (length) is a unit of length defined as 2.54e-5 metre. 2.54e-5 mile (statute) statute mile The statute mile is a unit of length defined as 1.609344e3 metre. mi 1.609344e3 mile (US survey) US survey mile The US survey mile is a unit of length defined as 1.609347e3 metre. 1.609347e3 nautical mile (international) zeemijl (internationaal) 海里（国际） international nautical mile The international nautical mile is a unit of length defined as 1852 metre. nmi M NM nm 1852 rod (US) US rod perch pole The US rod is a unit of length defined as 5.029210 metre. rd 5.029210 yard (international) 码（国际） international yard The international yard is a unit of length defined as 9.144e-1 metre. yd 9.144e-1 square metre vierkante meter 平方米 Square metre is a unit of area defined as the area of a square whose sides measure exactly one metre. Square metre is a unit of area defined as the area of a square whose sides measure exactly one metre. Square metre is a derived unit in the International System of Units. m2 2 area unit square yoctometre vierkante yoctometer ym2 2 square zeptometre vierkante zeptometer zm2 2 square attometre vierkante attometer am2 2 square femtometre vierkante femtometer fm2 2 square picometre vierkante picometer pm2 2 square nanometre vierkante nanometer nm2 2 square micrometre vierkante micrometer μm2 2 square millimetre vierkante millimeter mm2 2 square centimetre vierkante centimeter cm2 2 square decimetre vierkante decimeter dm2 2 square decametre vierkante decameter dam2 2 square hectometre vierkante hectometer hm2 2 square kilometre vierkante kilometer 10^6 m2 km2 2 square megametre vierkante megameter Mm2 2 square gigametre vierkante gigameter Gm2 2 square terametre vierkante terameter Tm2 2 square petametre vierkante petameter Pm2 2 square exametre vierkante exameter Em2 2 square zettametre vierkante zettameter Zm2 2 square yottametre vierkante yottameter Ym2 2 square prefixed metre 1 2 1 are are The are is a unit of area defined as 100 square metre. a 1.0e2 centiare centiare The centiare is a unit of area defined as 1.0e-2 are. ca hectare hectare The hectare is a unit of area defined as 1.0e2 are. ha prefixed are 1 1 acre (international) 英亩（国际） international acre The international acre is a unit of area defined as 4.0468564224e3 square metre. ac 4.0468564224e3 acre (US survey) 英亩（美国调查） US survey acre The US survey acre is a unit of area defined as 4.046872609874252e3 square metre. ac 4.046872609874252e3 barn The barn is a unit of area defined as 1.0e-28 square metre. b 1.0e-28 circular mil The cicular mil is a unit of area defined as 5.067075e-10 square metre. 5.067075e-10 square inch (international) in2 2 square foot (international) ft2 2 square yard (international) yd2 2 square mile (statute) mi2 2 cubic metre kubieke meter Cubic metre is a unit of volume defined as the volume of a cube whose sides measure exactly one metre. Cubic metre is a unit of volume defined as the volume of a cube whose sides measure exactly one metre. Cubic metre is a derived unit in the International System of Units. m3 3 volume unit cubic yoctometre kubieke yoctometer ym3 3 cubic zeptometre kubieke zeptometer zm3 3 cubic attometre kubieke attometer am3 3 cubic femtometre kubieke femtometer fm3 3 cubic picometre kubieke picometer pm3 3 cubic nanometre kubieke nanometer nm3 3 cubic micrometre kubieke micrometer μm3 3 cubic millimetre kubieke millimeter mm3 3 cubic centimetre kubieke centimeter cm3 3 cubic decimetre kubieke decimeter dm3 3 cubic decametre kubieke decameter dam3 3 cubic hectometre kubieke hectometer hm3 3 cubic kilometre kubieke kilometer km3 3 cubic megametre kubieke megameter Mm3 3 cubic gigametre kubieke gigameter Gm3 3 cubic terametre kubieke terameter Tm3 3 cubic petametre kubieke petameter Pm3 3 cubic exametre kubieke exameter Em3 3 cubic zettametre kubieke zettameter Zm3 3 cubic yottametre kubieke yottameter Ym3 3 cubic prefixed metre 1 3 1 litre liter 升 liter The litre is a unit of volume defined as 1.0e-3 cubic metre. l L 1.0e-3 yoctolitre yoctoliter yl zeptolitre zeptoliter zl attolitre attoliter al femtolitre femtoliter fl picolitre picoliter pl nanolitre nanoliter nl microlitre microliter μl ul millilitre milliliter ml centilitre centiliter cl decilitre deciliter dl decalitre decaliter dal hectolitre hectoliter hl kilolitre kiloliter kl megalitre megaliter Ml gigalitre gigaliter Gl teralitre teraliter Tl petalitre petaliter Pl exalitre exaliter El zettalitre zettaliter Zl yottalitre yottaliter Yl 25 millilitre 25 milliliter 25 ml 25 prefixed litre 1 1 acre foot The acre foot is a unit of volume defined as 1.233489e3 cubic metre. 1.233489e3 barrel (US) US barrel The US barrel is a unit of volume defined as 1.589873e-1 cubic metre. bbl 1.589873e-1 bushel (US) US bushel The US bushel is a unit of volume defined as 3.523907e-2 cubic metre. bu 3.523907e-2 cord The cord is a unit of volume defined as 3.624556 cubic metre. 3.624556 cup (US customary) US customary cup The US customary cup is a unit of volume defined as 2.365882e-4 cubic metre. 2.365882e-4 \cupUnit dry gallon (US) gallon (US dry) US dry gallon The US dry gallon is a unit of volume defined as 4.40488377086e-3 cubic metre. gal 4.40488377086e-3 dry pint (US) pint (US dry) US dry pint The US dry pint is a unit of volume defined as 5.506105e-4 cubic metre. dry pt 5.506105e-4 dry quart (US) quart (US dry) US dry quart The US dry quart is a unit of volume defined as 1.101221e-3 cubic metre. dry qt 1.101221e-3 fluid ounce (imperial) ounce (imperial fluid) imperial fluid ounce The imperial fluid ounce is a unit of volume defined as 2.841306e-5 cubic metre. fl oz 2.841306e-5 fluid ounce (US) ounce (US fluid) US fluid ounce The US fluid ounce is a unit of volume defined as 2.957353e-5 cubic metre. fl oz 2.957353e-5 gallon (imperial) imperial gallon The imperial gallon is a unit of volume defined as 4.54609e-3 cubic metre. gal 4.54609e-3 gallon (US) US gallon The US gallon is a unit of volume defined as 3.785412e-3 cubic metre. gal 3.785412e-3 gill (imperial) imperial gill The imperial gill is a unit of volume defined as 1.420653e-4 cubic metre. gi 1.420653e-4 gill (US) US gill The US gill is a unit of volume defined as 1.182941e-4 cubic metre. gi 1.182941e-4 liquid pint (US) pint (US liquid) US liquid pint The US liquid pint is a unit of volume defined as 4.731765e-4 cubic metre. liq pt 4.731765e-4 liquid quart (US) quart (US liquid) US liquid quart The US liquid quart is a unit of volume defined as 9.463529e-4 cubic metre. liq qt 9.463529e-4 peck (US) US peck The US peck is a unit of volume defined as 8.809768e-3 cubic metre. pk 8.809768e-3 pint (imperial) imperial pint The pint is a unit of volume defined as 568.26125 millilitre. 568.26125 quart (imperial) imperial quart The imperial quart is a unit of volume defined as 1.1365 litre. 1.1365 stere The stere is a unit of volume defined as cubic metre. tablespoon (US) US tablespoon The US tablespoon is a unit of volume defined as 1.478676e-5 cubic metre. 1.478676e-5 teaspoon (US) US teaspoon The US teaspoon is a unit of volume defined as 4.928922e-6 cubic metre. 4.928922e-6 dessertspoon The desserspoon is a unit of volume defined as 2 teaspoon. 2 ton (register) register ton The register ton is a unit of volume defined as 100 cubic foot = 2.8316846592 cubic metre. bar (food) reep bottle fles bowl schaaltje cup kopje dash scheutje deep bowl diep bord drop druppel fillet filet glass glas handful handje piece stuks pinch mespunt portion portie scoop bolletje serving spoon opscheplepel slice snee spread broodbelegging wedge punt wine glass wijnglas radian radiaal 弧度 The radian is a unit of angle defined as the angle subtended at the center of a circle by an arc that is equal in length to the radius of the circle. The radian is a unit of angle defined as the angle subtended at the center of a circle by an arc that is equal in length to the radius of the circle. The radian is a derived unit in the International System of Units. rad angle unit yoctoradian yoctoradiaal yrad zeptoradian zeptoradiaal zrad attoradian attoradiaal arad femtoradian femtoradiaal frad picoradian picoradiaal prad nanoradian nanoradiaal nrad microradian microradiaal μrad milliradian milliradiaal mrad centiradian centiradiaal crad deciradian deciradiaal drad prefixed radian 1 1 degree graad 度 The degree is a unit of angle defined as 1.745329e-2 radian. ° 1.745329e-2 gon grade The gon is a unit of angle defined as 1.570796e-2 radian. gon 1.570796e-2 microsecond (angle) microseconde (hoek) microsecond of arc microarcsecond microboogseconde The microsecond (angle) is a unit of length defined as 1.0e-6 second (angle). Used in astronomy (measurements of positions of stars, galaxies, etc.) to represent the error. μas mil (angle) The mil (angle) is a unit of angle defined as 9.817477e-4 radian. 9.817477e-4 millisecond (angle) milliseconde (hoek) millisecond of arc milliarcsecond milliboogseconde The millisecond (angle) is a unit of length defined as 1.0e-3 second (angle). Used in astronomy (measurements of positions of stars, galaxies, etc.) to represent the error. mas minute (angle) minuut (hoek) 分钟（角） minute of arc arcminute arcminuut The minute (angle) is a unit of angle defined as 2.908882e-4 radian. ' 2.908882e-4 revolution The revolution is a unit of angle defined as 6.283185 radian. r 6.283185 second (angle) seconde (hoek) 秒（角度） second of arc arcsecond boogseconde The second (angle) is a unit of angle defined as 4.848137e-6 radian. " 4.848137e-6 steradian steradiaal 球面度 The steradian is a unit of solid angle defined as the solid angle subtended at the center of a sphere by a portion of the surface of the sphere that has an area equal to the square of the radius of the sphere. The steradian is a unit of solid angle defined as the solid angle subtended at the center of a sphere by a portion of the surface of the sphere that has an area equal to the square of the radius of the sphere. The steradian is a derived unit in the International System of Units. sr solid angle unit yoctosteradian yoctosteradiaal ysr zeptosteradian zeptosteradiaal zsr attosteradian attosteradiaal asr femtosteradian femtosteradiaal fsr picosteradian picosteradiaal psr nanosteradian nanosteradiaal nsr microsteradian microsteradiaal μsr millisteradian millisteradiaal msr centisteradian centisteradiaal csr decisteradian decisteradiaal dsr prefixed steradian 1 1 degree squared 2 second (angle) squared arcsecond squared arcsec2 2 metre per metre meter per meter m/m m m-1 m·m-1 millimetre per metre millimeter per meter mm/m mm m-1 mm·m-1 length dimension lengtedimensie L 1 0 0 0 0 0 0 area dimension oppervlaktedimensie 2 0 0 0 0 0 0 volume dimension volumedimensie 3 0 0 0 0 0 0 dimensionOne 1 0 0 0 0 0 0 0 centimetre-gram-second system of units centimeter-gram-seconde-systeem cgs CGS centimetre-gram-second electromagnetic system of units centimeter-gram-seconde electromagnetische systeem centimetre, gram, second electromagnetic system of units CGS electromagnetic system of units electromagnetic CGS system of units emu EMU centimetre-gram-second electrostatic system of units centimeter-gram-seconde electrostatische systeem CGS electrostatic system of units electrostatic CGS system of units esu ESU centimetre-gram-second-biot system of units centimeter-gram-seconde-biot-systeem cm-g-s-Bi centimetre-gram-second-franklin system of units centimeter-gram-seconde-franklin-systeem cm-g-s-Fr Gaussian system of units Gaussische eenhedenstelsel 高斯系统单位 Gaussian CGS system of units mixed CGS system of units symmetrised CGS system of units International System of Units Internationale Stelsel van Eenheden 国际单位制 SI metre-kilogram-second-ampere system of units meter-kilogram-seconde-ampère-systeem Giorgi system of units Giorgi-stelsel m-kg-s-A mechanics mechanica displacement verplaatsing d wavelength golflengte λ time tijd 时间 Time is a base quantity in the International System of Units and other systems of units. It is measured by numbers of repetitions of cyclical events. t date datum duration duur period periode T mass massa 质量 weight Mass is the amount of matter of a phenomenon. It is a base quantity in the International System of Units. Mass is force divided by acceleration. m atomic mass m_a quantity of dimension one number N nr no # ratio percentage number density n column number density number density density wavenumber golfgetal Wavenumber is the number of repeating units of a propagating wave (the number of times a wave has the same phase) per unit of space. σ angular displacement frequency frequentie 频率 freq Frequency is a measure of the number of occurrences of a repeating event per unit time. f ν acceleration versnelling acceleratie a gravitational acceleration valversnelling acceleration of free fall zwaarteveldsterkte gravitatieveldsterkte g density dichtheid 密度 mass density soortelijke massa concentration (w/v) Density is the concentration of matter. It is a derived quantity in the International System of Units. Density is mass divided by volume. ρ specific volume soortelijk volume specifiek volume concentration (v/w) Specific volume is volume per unit mass. v speed snelheid (scalair) 速度 Speed is the time rate of motion measured by the distance moved over in unit time. v u velocity snelheid (vector) Velocity is the rate of change of position. u v w average speed u drainage speed force kracht 力 Force is the extent to which an object with mass can be caused to accelerate. It is a derived quantity in the International System of Units. Force is mass times acceleration. F friction wrijving Friction is a force that resists the relative motion of solid surfaces, fluid layers, or material elements sliding against each other. thrust stuwkracht Thrust is a reaction force that is caused by an accelerated mass expelled by a system in one direction. weight gewicht Weight is a force that attracts a body towards another (reference) body. G W P pressure druk 压力 Pressure is the force applied to or distributed over a surface. It is a derived quantity in the International System of Units. Pressure is force divided by area. p P energy energie 能量 Energy can be defined as the ability to do work. It is a derived quantity in the International System of Units. E W enthalpy enthalpie 焓 Enthalpy is the sum of the internal energy of a system plus the product of the pressure-volume work done on the system. H kinetic energy kinetische energie 动能 bewegingsenergie Kinetic energy is energy due to motion. E_k T K potential energy potentiële energie 势能 Potential energy is energy due to position of one body with respect to another or to the relative parts of the same body. E_p V Φ U work arbeid 工作 Work is the energy when a force acts against resistance to produce motion in a body. W A torque koppel 扭矩 Torque is the effectiveness of a force to produce rotation about an axis, measured by the product of the force and the perpendicular distance from the line of action of the force to the axis. T moment of force moment Moment of force is the effectiveness of a force to produce rotation about an axis measured by the product of the force and the perpendicular distance from the line of action of the force to the axis. M power vermogen 功率 Power is the time rate at which work is done. It is a derived quantity in the International System of Units. Power is energy divided by time. P specific energy Specific energy is energy per unit mass. angular speed hoeksnelheid angular frequency hoekfrequentie ω Ω angular velocity ω angular acceleration hoekversnelling α dynamic viscosity dynamische viscositeit viscosity Viscosity is the definite resistance to change of form of many materials. μ η kinematic viscosity kinematische viscositeit viscosity Kinematic viscosity is the ratio of viscosity to density. ν power density energy density energiedichtheid Energy density is the amount of energy stored in a given system or region of space per unit volume. action actie angular momentum impulsmoment draaiimpuls hoekmoment draaimoment L J fluidity mass fraction massafractie concentration (w/w) w momentum impuls linear momentum Momentum is the product of mass and velocity of an object. p moment of inertia traagheidsmoment massatraagheidsmoment Moment of inertia is a measure of the effectiveness of mass in rotation. I J relative humidity relatieve luchtvochtigheid RH area fraction oppervlaktefractie coverage volumetric flow rate volume flow rate volume flow flow rate volume fraction volumefractie concentration (v/v) φ overrun mass flow Mass flow is the movement of substances at equal rates or as a single body. mass per energy impulse stoot Impulse is the integral of a force with respect to time. I area density oppervlaktedichtheid area density rate second seconde 秒 sec s 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom The second is a unit of time defined as the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom. The second is a unit of time defined as the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom. The second is a base unit in the International System of Units. time unit yoctosecond yoctoseconde ys zeptosecond zeptoseconde zs attosecond attoseconde as femtosecond femtoseconde fs picosecond picoseconde ps nanosecond nanoseconde ns microsecond microseconde μs millisecond milliseconde ms centisecond centiseconde cs decisecond deciseconde ds decasecond decaseconde das hectosecond hectoseconde hs kilosecond kiloseconde ks megasecond megaseconde Ms gigasecond gigaseconde Gs terasecond teraseconde Ts petasecond petaseconde Ps exasecond exaseconde Es zettasecond zettaseconde Zs yottasecond yottaseconde Ys prefixed second (time) 1 1 day dag 天 The day is a unit of time defined as 86400 second. d \dayUnit 86400 hour uur 小时 The hour is a unit of time defined as 3600 second. h u 3.6e3 minute minuut 分钟 The minute (time) is a unit of time defined as 60 second. min 6.0e1 month maand 月 The month is a unit of time. \monthUnit shake The shake is a unit of time defined as 1.0e-8 second. 1.0e-8 week week The week is a unit of time defined as 6.04800e5 second. 6.04800e5 year jaar The year is a unit of time defined as 31556952 second. \yearUnit a y yr 31556952 gram gram 克 The gram is a unit of mass defined as 1.0e-3 kilogram. g 1.0e-3 mass unit yoctogram yoctogram The yoctogram is a unit of mass defined as 1.0e-24 gram. yg zeptogram zeptogram The zeptgram is a unit of mass defined as 1.0e-21 gram. zg attogram attogram The attogram is a unit of mass defined as 1.0e-18 gram. ag femtogram femtogram The femtogram is a unit of mass defined as 1.0e-15 gram. fg picogram picogram The picogram is a unit of mass defined as 1.0e-12 gram. pg nanogram nanogram 纳克 The nanogram is a unit of mass defined as 1.0e-9 gram. ng microgram microgram 微克 The microgram is a unit of mass defined as 1.0e-6 gram. μg mcg ug milligram milligram 毫克 The milligram is a unit of mass defined as 1.0e-3 gram. mg centigram centigram 百分之一克 The centigram is a unit of mass defined as 1.0e-2 gram. cg decigram decigram 十分之一克 The decigram is a unit of mass defined as 1.0e-1 gram. dg decagram decagram The decagram is a unit of mass defined as 1.0e1 gram. dag hectogram hectogram 100 gram The hectogram is a unit of mass defined as 1.0e2 gram. hg kilogram kilogram 公斤 kg international prototype of the kilogram mass of the international prototype of the kilogram The kilogram is a unit of mass defined as the mass of the international prototype of the kilogram. The kilogram is a unit of mass defined as the mass of the international prototype of the kilogram. The kilogram is a base unit in the International System of Units. megagram megagram The megagram is a unit of mass defined as 1.0e6 gram. Mg gigagram gigagram The gigagram is a unit of mass defined as 1.0e9 gram. Gg teragram teragram 10^12克 The teragram is a unit of mass defined as 1.0e12 gram. Tg petagram petagram 10^15克 The petagram is a unit of mass defined as 1.0e15 gram. Pg exagram exagram 千兆兆克 The exagram is a unit of mass defined as 1.0e18 gram. Eg zettagram zettagram 10^21克 The zettagram is a unit of mass defined as 1.0e21 gram. ZG yottagram yottagram The yottagram is a unit of mass defined as 1.0e24 gram. YG prefixed gram 1 1 tonne ton 公吨 metric ton The tonne is a unit of mass defined as 1000 kilogram. t 1.0e3 kilotonne kiloton kt megatonne megaton Mt prefixed tonne 1 1 unified atomic mass unit The unified atomic mass unit is a unit of mass defined as 1.660538782(83)e-27 kilogram. u nanounified atomic mass unit nu prefixed unified atomic mass unit 1 1 carat (mass) karaat (massa) The carat (mass) is a unit of mass defined as 2.0e-4 kilogram. 2.0e-4 grain The grain is a unit of mass defined as 6.479891e-5 kilogram. gr 6.479891e-5 hundredweight (British) British hundredweight The British hundredweight is a unit of mass defined as 5.080235e1 kilogram. 5.080235e1 hundredweight (US) US hundredweight The US hundredweight is a unit of mass defined as 4.535924e1 kilogram. 4.535924e1 International Unit 国际单位 IU milligram RAE ounce (apothecaries') apothecaries' ounce troy ounce ounce (troy) The apothecaries' ounce is a unit of mass defined as 3.110348e-2 kilogram. oz (ap.) oz (apoth) 3.110348e-2 ounce (avoirdupois) avoirdupois ounce The avoirdupois ounce is a unit of mass defined as 2.834952e-2 kilogram. oz oz (av.) oz avdp 2.834952e-2 pennyweight (Troy) Troy pennyweight The Troy pennyweight is a unit of mass defined as 1.555174e-3 kilogram. dwt 1.555174e-3 pound (apthecaries') apothecaries' pound troy pound pound (troy) The apothecaries' pound is a unit of mass defined as 3.732417e-1 kilogram. lb 3.732417e-1 pound (avoirdupois) avoirdupois pound The avoirdupois pound is a unit of mass defined as 4.535924e-1 kilogram. lb 4.5359237e-1 slug 金属块 The slug is a unit of mass defined as 1.459390e1 kilogram. slug 1.459390e1 ton (short assay) short assay ton The short assay ton is a unit of mass defined as 2.916667e-2 kilogram. 2.916667e-2 ton (long) long ton The long ton is a unit of mass defined as 1.016047e3 kilogram. 1.016047e3 ton (short) short ton The short ton is a unit of mass defined as 9.071847e2 kilogram. 9.071847e2 one unit one Unit one is a unit of dimension one. 1 quantity of dimension one unit number unit ratio unit percentage unit mass fraction unit area fraction unit volume fraction unit relative humidity unit percent procent 百分 The percent is a unit of dimension one defined as 1/100. % \% 0.01 parts per million Parts per million is a unit of dimension one defined as 1/1 000 000. ppm 0.000001 half dozen Half dozen is a unit of dimension one defined as 6. 6 dozen Dozen is a unit of dimension one defined as 12. 12 hundred count Hundred count is a unit of dimension one defined as 100. 100 gross Gross is a unit of dimension one defined as 144. 144 thousand piece Thousand is a unit of dimension one defined as 1000. 1000 reciprocal second omgekeerde seconde s-1 -1 frequency unit hertz hertz 赫兹 The hertz is a unit of frequency defined as 1 divided by second. The hertz is a unit of frequency defined as 1 divided by second. The hertz is a derived unit in the International System of Units. Hz yoctohertz yoctohertz The yoctohertz is a unit of frequency defined as 1.0e-24 hertz. yHz zeptohertz zeptohertz The zepthertz is a unit of frequency defined as 1.0e-21 hertz. zHz attohertz attohertz The attohertz is a unit of frequency defined as 1.0e-18 hertz. aHz femtohertz femtohertz The femtohertz is a unit of frequency defined as 1.0e-15 hertz. fHz picohertz picohertz The picohertz is a unit of frequency defined as 1.0e-12 hertz. pHz nanohertz nanohertz The nanohertz is a unit of frequency defined as 1.0e-9 hertz. nHz microhertz microhertz The microhertz is a unit of frequency defined as 1.0e-6 hertz. μHz millihertz millihertz The millihertz is a unit of frequency defined as 1.0e-3 hertz. mHz centihertz centihertz The centihertz is a unit of frequency defined as 1.0e-2 hertz. cHz decihertz decihertz The decihertz is a unit of frequency defined as 1.0e-1 hertz. dHz decahertz decahertz The decahertz is a unit of frequency defined as 1.0e1 hertz. daHz hectohertz hectohertz The hectohertz is a unit of frequency defined as 1.0e2 hertz. hHz kilohertz kilohertz The kilohertz is a unit of frequency defined as 1.0e3 hertz. kHz megahertz megahertz The megahertz is a unit of frequency defined as 1.0e6 hertz. MHz gigahertz gigahertz The gigahertz is a unit of frequency defined as 1.0e9 hertz. GHz terahertz terahertz The terahertz is a unit of frequency defined as 1.0e12 hertz. THz petahertz petahertz The petahertz is a unit of frequency defined as 1.0e15 hertz. PHz exahertz exahertz The exahertz is a unit of frequency defined as 1.0e18 hertz. EHz zettahertz zettahertz The zettahertz is a unit of frequency defined as 1.0e21 hertz. ZHz yottahertz yottahertz The yottahertz is a unit of frequency defined as 1.0e24 hertz. YHz prefixed hertz 1 1 reciprocal minute omgekeerde minuut min-1 -1 reciprocal hour omgekeerd uur h-1 -1 reciprocal day omgekeerde dag d-1 -1 reciprocal year omgekeerd jaar a-1 -1 reciprocal cubic metre omgekeerde kubieke meter m-3 -3 number density unit reciprocal cubic centimetre omgekeerde kubieke centimeter cm-3 -3 reciprocal litre omgekeerde liter l-1 -1 reciprocal metre omgekeerder meter Reciprocal metre is a unit of wavenumber defined as 1 divided by metre. Reciprocal metre is a unit of wavenumber defined as 1 divided by metre. Reciprocal metre is a derived unit in the International System of Units. m-1 -1 wave number unit kayser kayser rydberg rydberg The kayser is a unit of wavenumber defined as 100 reciprocal metre. 1.0e2 metre per metre meter per meter m/m m m-1 m·m-1 metre per second squared meter per seconde kwadraat Metre per second squared is a unit of acceleration defined as metre divided by second squared. Metre per second squared is a unit of acceleration defined as metre divided by second squared. Metre per second squared is a derived unit in the International System of Units. m/s2 m s-2 m·s-2 acceleration unit yoctometre per second squared yoctometer per seconde kwadraat Yoctometre per second squared is a unit of acceleration defined as yoctometre divided by second squared. ym/s2 ym s-2 ym·s-2 zeptometre per second squared zeptometer per seconde kwadraat Zeptometre per second squared is a unit of acceleration defined as zeptometre divided by second squared. zm/s2 zm s-2 zm·s-2 attometre per second squared attometer per seconde kwadraat Attometre per second squared is a unit of acceleration defined as attometre divided by second squared. am/s2 am s-2 am·s-2 femtometre per second squared femtometer per seconde kwadraat Femtometre per second squared is a unit of acceleration defined as femtometre divided by second squared. fm/s2 fm s-2 fm·s-2 picometre per second squared picometer per seconde kwadraat Picometre per second squared is a unit of acceleration defined as picometre divided by second squared. pm/s2 pm s-2 pm·s-2 nanometre per second squared nanometer per seconde kwadraat Nanometre per second squared is a unit of acceleration defined as nanometre divided by second squared. nm/s2 nm s-2 nm·s-2 micrometre per second squared micrometer per seconde kwadraat Micrometre per second squared is a unit of acceleration defined as micrometre divided by second squared. μm/s2 μm s-2 μm·s-2 millimetre per second squared millimeter per seconde kwadraat Millimetre per second squared is a unit of acceleration defined as millimetre divided by second squared. mm/s2 mm s-2 mm·s-2 centimetre per second squared centimeter per seconde kwadraat Centimetre per second squared is a unit of acceleration defined as centimetre divided by second squared. cm/s2 cm s-2 cm·s-2 decimetre per second squared decimeter per seconde kwadraat Decimetre per second squared is a unit of acceleration defined as decimetre divided by second squared. dm/s2 dm s-2 dm·s-2 decametre per second squared decameter per seconde kwadraat Decametre per second squared is a unit of acceleration defined as decametre divided by second squared. dam/s2 dam s-2 dam·s-2 hectometre per second squared hectometer per seconde kwadraat Hectometre per second squared is a unit of acceleration defined as hectometre divided by second squared. hm/s2 hm s-2 hm·s-2 kilometre per second squared kilometer per seconde kwadraat Kilometre per second squared is a unit of acceleration defined as kilometre divided by second squared. km/s2 km s-2 km·s-2 megametre per second squared megameter per seconde kwadraat Megametre per second squared is a unit of acceleration defined as megametre divided by second squared. Mm/s2 Mm s-2 Mm·s-2 gigametre per second squared gigameter per seconde kwadraat Gigametre per second squared is a unit of acceleration defined as gigametre divided by second squared. Gm/s2 Gm s-2 Gm·s-2 terametre per second squared terameter per seconde kwadraat Terametre per second squared is a unit of acceleration defined as terametre divided by second squared. Tm/s2 Tm s-2 Tm·s-2 petametre per second squared petameter per seconde kwadraat Petametre per second squared is a unit of acceleration defined as petametre divided by second squared. Pm/s2 Pm s-2 Pm·s-2 exametre per second squared exameter per seconde kwadraat Exametre per second squared is a unit of acceleration defined as exametre divided by second squared. Em/s2 Em s-2 Em·s-2 zettametre per second squared zettameter per seconde kwadraat Zettametre per second squared is a unit of acceleration defined as zettametre divided by second squared. Zm/s2 Zm s-2 Zm·s-2 yottametre per second squared yottameter per seconde kwadraat Yottametre per second squared is a unit of acceleration defined as yottametre divided by second squared. Ym/s2 Ym s-2 Ym·s-2 metre per yoctosecond squared meter per yoctoseconde kwadraat Metre per yoctosecond squared is a unit of acceleration defined as metre divided by yoctosecond squared. m/ys2 m ys-2 m·ys-2 metre per zeptosecond squared meter per zeptoseconde kwadraat Metre per zeptosecond squared is a unit of acceleration defined as metre divided by zeptosecond squared. m/zs2 m zs-2 m·zs-2 metre per attosecond squared meter per attoseconde kwadraat Metre per attosecond squared is a unit of acceleration defined as metre divided by attosecond squared. m/as2 m as-2 m·as-2 metre per femtosecond squared meter per femtoseconde kwadraat Metre per femtosecond squared is a unit of acceleration defined as metre divided by femtosecond squared. m/fs2 m fs-2 m·fs-2 metre per picosecond squared meter per picoseconde kwadraat Metre per picosecond squared is a unit of acceleration defined as metre divided by picosecond squared. m/ps2 m ps-2 m·ps-2 metre per nanosecond squared meter per nanoseconde kwadraat Metre per nanosecond squared is a unit of acceleration defined as metre divided by nanosecond squared. m/ns2 m ns-2 m·ns-2 metre per microsecond squared meter per microseconde kwadraat Metre per microsecond squared is a unit of acceleration defined as metre divided by microsecond squared. m/μs2 m μs-2 m·μs-2 metre per millisecond squared meter per milliseconde kwadraat Metre per millisecond squared is a unit of acceleration defined as metre divided by millisecond squared. m/ms2 m ms-2 m·ms-2 metre per centisecond squared meter per centiseconde kwadraat Metre per centisecond squared is a unit of acceleration defined as metre divided by centisecond squared. m/cs2 m cs-2 m·cs-2 metre per decisecond squared meter per deciseconde kwadraat Metre per decisecond squared is a unit of acceleration defined as metre divided by decisecond squared. m/ds2 m ds-2 m·ds-2 metre per decasecond squared meter per decaseconde kwadraat Metre per decasecond squared is a unit of acceleration defined as metre divided by decasecond squared. m/das2 m das-2 m·das-2 metre per hectosecond squared meter per hectoseconde kwadraat Metre per hectosecond squared is a unit of acceleration defined as metre divided by hectosecond squared. m/hs2 m hs-2 m·hs-2 metre per kilosecond squared meter per kiloseconde kwadraat Metre per kilosecond squared is a unit of acceleration defined as metre divided by kilosecond squared. m/ks2 m ks-2 m·ks-2 metre per megasecond squared meter per megaseconde kwadraat Metre per megasecond squared is a unit of acceleration defined as metre divided by megasecond squared. m/Ms2 m Ms-2 m·Ms-2 metre per gigasecond squared meter per gigaseconde kwadraat Metre per gigasecond squared is a unit of acceleration defined as metre divided by gigasecond squared. m/Gs2 m Gs-2 m·Gs-2 metre per terasecond squared meter per teraseconde kwadraat Metre per terasecond squared is a unit of acceleration defined as metre divided by terasecond squared. m/Ts2 m Ts-2 m·Ts-2 metre per petasecond squared meter per petaseconde kwadraat Metre per petasecond squared is a unit of acceleration defined as metre divided by petasecond squared. m/Ps2 m Ps-2 m·Ps-2 metre per exasecond squared meter per exaseconde kwadraat Metre per exasecond squared is a unit of acceleration defined as metre divided by exasecond squared. m/Es2 m Es-2 m·Es-2 metre per zettasecond squared meter per zettaseconde kwadraat Metre per zettasecond squared is a unit of acceleration defined as metre divided by zettasecond squared. m/Zs2 m Zs-2 m·Zs-2 metre per yottasecond squared meter per yottaseconde kwadraat Metre per yottasecond squared is a unit of acceleration defined as metre divided by yottasecond squared. m/Ys2 m Ys-2 m·Ys-2 prefixed metre per second (time) squared 1 1 metre per prefixed second (time) squared 1 1 prefixed metre per prefixed secon (time) squared 1 1 gal gal galileo galileo The gal is a unit of acceleration defined as centimetre per second (time) squared. Gal kilogram per cubic metre kilogram per kubieke meter Kilogram per cubic metre is a unit of density defined as kilogram divided by cubic metre. Kilogram per cubic metre is a unit of density defined as kilogram divided by cubic metre. Kilogram per cubic metre is a derived unit in the International System of Units. kg/m3 kg m-3 kg·m-3 density unit gram per cubic metre gram per kubieke meter Gram per cubic metre is a unit of density defined as gram divided by cubic metre. Gram per cubic metre is a unit of density defined as gram divided by cubic metre. Gram per cubic metre is a derived unit in the International System of Units. g/m3 g m-3 g·m-3 milligram per cubic metre milligram per kubieke meter Milligram per cubic metre is a unit of density defined as milligram divided by cubic metre. Milligram per cubic metre is a unit of density defined as milligram divided by cubic metre. Milligram per cubic metre is a derived unit in the International System of Units. mg/m3 mg m-3 mg·m-3 gram per cubic centimetre gram per kubieke centimeter Gram per cubic centimetre is a unit of density defined as gram divided by cubic centimetre. Gram per cubic centimetre is a unit of density defined as gram divided by cubic centimetre. Gram per cubic centimetre is a derived unit in the International System of Units. g/cm3 g cm-3 g·cm-3 microgram per cubic centimetre microgram per kubieke centimeter Microram per cubic centimetre is a unit of density defined as microgram divided by cubic centimetre. Microgram per cubic centimetre is a unit of density defined as microgram divided by cubic centimetre. Microgram per cubic centimetre is a derived unit in the International System of Units. μg/cm3 μg cm-3 μg·cm-3 kilogram per cubic decimetre kilogram per kubieke decimeter Kilogram per cubic decimetre is a unit of density defined as kilogram divided by cubic decimetre. Kilogram per cubic decimetre is a unit of density defined as kilogram divided by cubic decimetre. Kilogram per cubic decimetre is a derived unit in the International System of Units. kg/dm3 kg dm-3 kg·dm-3 gram per litre gram per liter Gram per litre is a unit of density defined as gram divided by litre. Gram per litre is a unit of density defined as gram divided by litre. Gram per litre is a derived unit in the International System of Units. g/l g l-1 g·l-1 yoctogram per litre yoctogram per liter Yoctogram per litre is a unit of density defined as yoctogram divided by litre. yg/l yg l-1 yg·l-1 zeptogram per litre zeptogram per liter Zeptogram per litre is a unit of density defined as zeptogram divided by litre. zg/l zg l-1 zg·l-1 attogram per litre attogram per liter Attogram per litre is a unit of density defined as attogram divided by litre. ag/l ag l-1 ag·l-1 femtogram per litre femtogram per liter Femtogram per litre is a unit of density defined as femtogram divided by litre. fg/l fm s-1 fm·s-1 picogram per litre picogram per liter Picogram per litre is a unit of density defined as picogram divided by litre. pg/l pg l-1 pg·l-1 nanogram per litre nanogram per liter Nanogram per litre is a unit of density defined as nanogram divided by litre. ng/l ng l-1 ng·l-1 microgram per litre microgram per liter Microgram per litre is a unit of density defined as microgram divided by litre. μg/l μg l-1 μg·l-1 milligram per litre milligram per liter Milligram per litre is a unit of density defined as milligram divided by litre. mg/l mg l-1 mg·l-1 centigram per litre centigram per liter Centigram per litre is a unit of density defined as centigram divided by litre. cg/l cg l-1 cg·l-1 decigram per litre decigram per liter Decigram per litre is a unit of density defined as decigram divided by litre. dg/l dg l-1 dg·l-1 decagram per litre decagram per liter Decagram per litre is a unit of density defined as decagram divided by litre. dag/l dag l-1 dag·l-1 hectogram per litre hectogram per liter Hectogram per litre is a unit of density defined as hectogram divided by litre. hg/l hg l-1 hg·l-1 kilogram per litre kilogram per liter Kilogram per litre is a unit of density defined as kilogram divided by litre. kg/l kg l-1 kg·l-1 megagram per litre megagram per liter Megagram per litre is a unit of density defined as megagram divided by litre. Mg/l Mg l-1 Mg·l-1 gigagram per litre gigagram per liter Gigagram per litre is a unit of density defined as gigagram divided by litre. Gg/l Gg l-1 Gg·l-1 teragram per litre teragram per liter Teragram per litre is a unit of density defined as teragram divided by litre. Tg/l Tg l-1 Tg·l-1 petagram per litre petagram per liter Petagram per litre is a unit of density defined as petagram divided by litre. Pg/l Pg l-1 Pg·l-1 exagram per litre exagram per liter Exagram per litre is a unit of density defined as exagram divided by litre. Eg/l Eg l-1 Eg·l-1 zettagram per litre zettagram per liter Zettagram per litre is a unit of density defined as zettagram divided by litre. Zg/l Zg l-1 Zg·l-1 yottagram per litre yottagram per liter Yottagram per litre is a unit of density defined as yottagram divided by litre. Yg/l Yg l-1 Yg·l-1 gram per yoctolitre gram per yoctoliter Gram per yoctolitre is a unit of density defined as gram divided by yoctolitre. g/yl g yl-1 g·yl-1 gram per zeptolitre gram per zeptoliter Gram per zeptolitre is a unit of density defined as gram divided by zeptolitre. g/zl g zl-1 g·zl-1 gram per attolitre gram per attoliter Gram per attolitre is a unit of density defined as gram divided by attolitre. g/al g al-1 g·al-1 gram per femtolitre gram per femtoliter Gram per femtolitre is a unit of density defined as gram divided by femtolitre. g/fl g fl-1 g·fl-1 gram per picolitre gram per picoliter Gram per picolitre is a unit of density defined as gram divided by picolitre. g/pl g pl-1 g·pl-1 gram per nanolitre gram per nanoliter Gram per nanolitre is a unit of density defined as gram divided by nanolitre. g/nl g nl-1 g·nl-1 gram per microlitre gram per microliter Gram per microlitre is a unit of density defined as gram divided by microlitre. g/μl g μl-1 g·μl-1 gram per millilitre gram per milliliter Gram per millilitre is a unit of density defined as gram divided by millilitre. g/ml g ml-1 g·ml-1 gram per centilitre gram per centiliter Gram per centilitre is a unit of density defined as gram divided by centilitre. g/cl g cl-1 g·cl-1 gram per decilitre gram per deciliter Gram per decilitre is a unit of density defined as gram divided by decilitre. g/dl g dl-1 g·dl-1 gram per decalitre gram per decaliter Gram per decalitre is a unit of density defined as gram divided by decalitre. g/dal g dal-1 g·dal-1 gram per hectolitre gram per hectoliter Gram per hectolitre is a unit of density defined as gram divided by hectolitre. g/hl g hl-1 g·hl-1 gram per kilolitre gram per kiloliter Gram per kilolitre is a unit of density defined as gram divided by kilolitre. g/kl g kl-1 g·kl-1 gram per megalitre gram per megaliter Gram per megalitre is a unit of density defined as gram divided by megalitre. g/Ml g Ml-1 g·Ml-1 gram per gigalitre gram per gigaliter Gram per gigalitre is a unit of density defined as gram divided by gigalitre. g/Gl g Gl-1 g·Gl-1 gram per teralitre gram per teraliter Gram per teralitre is a unit of density defined as gram divided by teralitre. g/Tl g Tl-1 g·Tl-1 gram per petalitre gram per petaliter Gram per petalitre is a unit of density defined as gram divided by petalitre. g/Pl g Pl-1 g·Pl-1 gram per exalitre gram per exaliter Gram per exalitre is a unit of density defined as gram divided by exalitre. g/El g El-1 g·El-1 gram per zettalitre gram per zettaliter Gram per zettalitre is a unit of density defined as gram divided by zettalitre. g/Zl g Zl-1 g·Zl-1 gram per yottalitre gram per yottaliter Gram per yottalitre is a unit of density defined as gram divided by yottalitre. g/Yl g Yl-1 g·Yl-1 prefixed gram per litre 1 1 gram per prefixed litre 1 1 prefixed gram per prefixed litre 1 1 cubic metre per kilogram kubieke meter per kilogram Cubic metre per kilogram is a unit of specific volume defined as cubic metre divided by kilogram. Cubic metre per kilogram is a unit of specific volume defined as cubic metre divided by kilogram. Cubic metre per kilogram is a derived unit in the International System of Units. m3/kg m3 kg-1 m3·kg-1 specific volume unit litre per kilogram liter per kilogram Litre per kilogram is a unit of specific volume defined as litre divided by kilogram. Litre per kilogram is a unit of specific volume defined as litre divided by kilogram. Litre per kilogram is a derived unit in the International System of Units. l/kg l kg-1 l·kg-1 metre per second meter per seconde Metre per second is a unit of speed defined as metre divided by second. Metre per second is a unit of speed defined as metre divided by second. Metre per second is a derived unit in the International System of Units. m/s m s-1 m·s-1 mps speed unit yoctometre per second yoctometer per seconde Yoctometre per second is a unit of speed defined as yoctometre divided by second. ym/s ym s-1 ym·s-1 zeptometre per second zeptometer per seconde Zeptometre per second is a unit of speed defined as zeptometre divided by second. zm/s zm s-1 zm·s-1 attometre per second attometer per seconde Attometre per second is a unit of speed defined as attometre divided by second. am/s am s-1 am·s-1 femtometre per second femtometer per seconde Femtometre per second is a unit of speed defined as femtometre divided by second. fm/s fm s-1 fm·s-1 picometre per second picometer per seconde Picometre per second is a unit of speed defined as picometre divided by second. pm/s pm·s-1 pm s-1 nanometre per second nanometer per seconde Nanometre per second is a unit of speed defined as nanometre divided by second. nm/s nm s-1 nm·s-1 micrometre per second micrometer per seconde Micrometre per second is a unit of speed defined as micrometre divided by second. μm/s μm·s-1 μm s-1 millimetre per second millimeter per seconde Millimetre per second is a unit of speed defined as millimetre divided by second. mm/s mm s-1 mm·s-1 centimetre per second centimeter per seconde Centimetre per second is a unit of speed defined as centimetre divided by second. cm/s cm s-1 cm·s-1 decimetre per second decimeter per seconde Decimetre per second is a unit of speed defined as decimetre divided by second. dm/s dm s-1 dm·s-1 decametre per second decameter per seconde Decametre per second is a unit of speed defined as decametre divided by second. dam/s dam s-1 dam·s-1 hectometre per second hectometer per seconde Hectometre per second is a unit of speed defined as hectometre divided by second. hm/s hm s-1 hm·s-1 kilometre per second kilometer per seconde Kilometre per second is a unit of speed defined as kilometre divided by second. km/s km s-1 km·s-1 megametre per second megameter per seconde Megametre per second is a unit of speed defined as megametre divided by second. Mm/s Mm s-1 Mm·s-1 gigametre per second gigameter per seconde Gigametre per second is a unit of speed defined as gigametre divided by second. Gm/s Gm s-1 Gm·s-1 terametre per second terameter per seconde Terametre per second is a unit of speed defined as terametre divided by second. Tm/s Tm s-1 Tm·s-1 petametre per second petameter per seconde Petametre per second is a unit of speed defined as petametre divided by second. Pm/s Pm s-1 Pm·s-1 exametre per second exameter per seconde Exametre per second is a unit of speed defined as exametre divided by second. Em/s Em s-1 Em·s-1 zettametre per second zettameter per seconde Zettametre per second is a unit of speed defined as zettametre divided by second. Zm/s Zm s-1 Zm·s-1 yottametre per second yottameter per seconde Yottametre per second is a unit of speed defined as yottametre divided by second. Ym/s Ym s-1 Ym·s-1 metre per yoctosecond meter per yoctoseconde Metre per yoctosecond is a unit of speed defined as metre divided by yoctosecond. m/ys m ys-1 m·ys-1 metre per zeptosecond meter per zeptoseconde Metre per zeptosecond is a unit of speed defined as metre divided by zeptosecond. m/zs m zs-1 m·zs-1 metre per attosecond meter per attoseconde Metre per attosecond is a unit of speed defined as metre divided by attosecond. m/as m as-1 m·as-1 metre per femtosecond meter per femtoseconde Metre per femtosecond is a unit of speed defined as metre divided by femtosecond. m/fs m fs-1 m·fs-1 metre per picosecond meter per picoseconde Metre per picosecond is a unit of speed defined as metre divided by picosecond. m/ps m ps-1 m·ps-1 metre per nanosecond meter per nanoseconde Metre per nanosecond is a unit of speed defined as metre divided by nanosecond. m/ns m ns-1 m·ns-1 metre per microsecond meter per microseconde Metre per microsecond is a unit of speed defined as metre divided by microsecond. m/μs m μs-1 m·μs-1 metre per millisecond meter per milliseconde Metre per millisecond is a unit of speed defined as metre divided by millisecond. m/ms m ms-1 m·ms-1 metre per centisecond meter per centiseconde Metre per centisecond is a unit of speed defined as metre divided by centisecond. m/cs m cs-1 m·cs-1 metre per decisecond meter per deciseconde Metre per decisecond is a unit of speed defined as metre divided by decisecond. m/ds m ds-1 m·ds-1 metre per decasecond meter per decaseconde Metre per decasecond is a unit of speed defined as metre divided by decasecond. m/das m das-1 m·das-1 metre per hectosecond meter per hectoseconde Metre per hectosecond is a unit of speed defined as metre divided by hectosecond. m/hs m hs-1 m·hs-1 metre per kilosecond meter per kiloseconde Metre per kilosecond is a unit of speed defined as metre divided by kilosecond. m/ks m ks-1 m·ks-1 metre per megasecond meter per megaseconde Metre per megasecond is a unit of speed defined as metre divided by megasecond. m/Ms m Ms-1 m·Ms-1 metre per gigasecond meter per gigaseconde Metre per gigasecond is a unit of speed defined as metre divided by gigasecond. m/Gs m Gs-1 m·Gs-1 metre per terasecond meter per teraseconde Metre per terasecond is a unit of speed defined as metre divided by terasecond. m/Ts m Ts-1 m·Ts-1 metre per petasecond meter per petaseconde Metre per petasecond is a unit of speed defined as metre divided by petasecond. m/Ps m Ps-1 m·Ps-1 metre per exasecond meter per exaseconde Metre per exasecond is a unit of speed defined as metre divided by exasecond. m/Es m Es-1 m·Es-1 metre per zettasecond meter per zettaseconde Metre per zettasecond is a unit of speed defined as metre divided by zettasecond. m/Zs m Zs-1 m·Zs-1 metre per yottasecond meter per yottaseconde Metre per yottasecond is a unit of speed defined as metre divided by yottasecond. m/Ys m Ys-1 m·Ys-1 prefixed metre per second (time) 1 1 metre per prefixed second (time) 1 1 prefixed metre per prefixed second (time) 1 1 knot (international) knoop (internationaal) 海里/小时（国际） international knot The international knot is a unit of speed defined as nautical mile per hour. centimetre per day centimeter per dag Centimetre per day is a unit of speed defined as centimetre divided by day. cm/d cm d-1 cm·d-1 metre per day meter per dag Metre per day is a unit of speed defined as metre divided by day. m/d m d-1 m·d-1 millimetre per hour millimeter per uur Millimetre per hour is a unit of speed defined as millimetre divided by hour. mm/h mm h-1 mm·h-1 kilometre per hour kilometer per uur Kilometre per hour is a unit of speed defined as kilometre divided by hour. km/h km h-1 km·h-1 millimetre per day millimeter per dag Millimetre per day is a unit of speed defined as millimetre divided by day. mm/d mm d-1 mm·d-1 mile (statute) per hour mijl per uur Mile (statute) per hour is a unit of speed defined as mile (statute) divided by hour. mi/h mi h-1 mi·h-1 nautical mile per hour zeemijl per uur Nautical mile per hour is a unit of speed defined as nautical mile divided by hour. nmi/h nmi h-1 nmi·h-1 M/h M h-1 M·h-1 NM/h NM h-1 NM·h-1 nm/h nm h-1 nm·h-1 metre kilogram per second squared meter kilogram per seconde kwadraat m kg/s2 m·kg/s2 m kg s-2 m·kg·s-2 force unit newton newton 牛顿 The newton is a unit of force defined as kilogram timesmetre divided by second squared. The newton is a unit of force defined as kilogram times metre divided by second squared. The newton is a derived unit in the International System of Units. N yoctonewton yoctonewton yN zeptonewton zeptonewton zN attonewton attonewton aN femtonewton femtonewton fN piconewton piconewton pN nanonewton nanonewton nN micronewton micronewton μN millinewton millinewton mN centinewton centinewton cN decinewton decinewton dN decanewton decanewton daN hectonewton hectonewton hN kilonewton kilonewton kN meganewton meganewton MN giganewton giganewton GN teranewton teranewton TN petanewton petanewton PN exanewton exanewton EN zettanewton zettanewton ZN yottanewton yottanewton YN prefixed newton 1 1 dyne dyne 达因 The dyne is a unit of force defined as 1.0e-5 newton. dyn 1.0e-5 kip kip The kip is a unit of force defined as 4.448222e3 newton. 4.448222e3 pound-force The pound-force is a unit of force defined as 4.448222 newton. lbf 4.448222 poundal The poundal is a unit of force defined as 1.382550e-1 newton. 1.382550e-1 ton-force (short) short ton-force The short ton-force is a unit of force defined as 8.896443e3 newton. 8.896443e3 newton per square metre newton per vierkante meter N/m2 N m-2 N·m-2 pressure unit stress unit reciprocal metre kilogram second to the power -2 omgekeerde meter kilogram seconde tot de macht -2 m-1 kg s-2 m-1·kg·s-2 pascal pascal The pascal is a unit of pressure and stress defined as newton divided by square metre = joule divided by cubic metre = kilogram divided by metre second squared. The pascal is a unit of pressure and stress defined as newton divided by square metre = joule divided by cubic metre = kilogram divided by metre second squared. The pascal is a derived unit in the International System of Units. Pa yoctopascal yoctopascal yPa zeptopascal zeptopascal zPa attopascal attopascal aPa femtopascal femtopascal fPa picopascal picopascal pPa nanopascal nanopascal nPa micropascal micropascal μPa millipascal millipascal mPa centipascal centipascal cPa decipascal decipascal dPa decapascal decapascal daPa hectopascal hectopascal hPa kilopascal kilopascal kPa megapascal megapascal MPa gigapascal gigapascal GPa terapascal terapascal TPa petapascal petapascal PPa exapascal exapascal EPa zettapascal zettapascal ZPa yottapascal yottapascal YPa prefixed pascal 1 1 bar bar 巴（压力计量单位） The bar is a unit of pressure defined as 100 000 pascal. \barUnit bar 1.0e5 microbar microbar 微巴 The microbar is a unit of pressure defined as 1.0e-6 bar. μbar millibar millibar The millibar is a unit of pressure defined as 1.0e-3 bar. mbar decibar decibar The decibar is a unit of pressure defined as 1.0e-1 bar. dbar metre of mercury meter kwik The metre of mercury is a unit of pressure defined as 133 322 pascal. m Hg 1.33322e5 millimetre of mercury millimeter kwik The millimetre of mercury is a unit of pressure defined as 1.0e-3 metre of mercury. mm Hg centimetre of mercury centimeter kwik The centimetre of mercury is a unit of pressure defined as 1.0e-2 metre of mercury. cm Hg atmosphere (standard) atmosfeer (standaard) standard atmosphere The standard atmosphere is a unit of pressure defined as 1.01325e5 pascal. atm 1.01325e5 atmosphere (technical) technical atmosphere The technical atmosphere is a unit of pressure defined as 9.80665e4 pascal. at 9.80665e4 barye barye The barye is a unit of pressure defined as 0.1 pascal. ba 1.0e-1 torr torr The torr is a unit of pressure defined as 1.333224e2 pascal. Torr 1.33322368421053e2 torque unit moment of force unit newton metre newton meter N m N·m energy unit micronewton metre micronewton meter μN m μN·m millinewton metre millinewton meter mN m mN·m joule joule 焦耳 The joule is a unit of energy defined as kilogram times square metre divided by second squared. The joule is a unit of energy defined as kilogram times square metre divided by second squared. The joule is a derived unit in the International System of Units. J yoctojoule yoctojoule The yoctojoule is a unit of energy defined as 1.0e-24 joule. yJ zeptojoule zeptojoule The zeptjoule is a unit of energy defined as 1.0e-21 joule. zJ attojoule attojoule The attojoule is a unit of energy defined as 1.0e-18 joule. aJ femtojoule femtojoule The femtojoule is a unit of energy defined as 1.0e-15 joule. fJ picojoule picojoule The picojoule is a unit of energy defined as 1.0e-12 joule. pJ nanojoule nanojoule The nanojoule is a unit of energy defined as 1.0e-9 joule. nJ microjoule microjoule The microjoule is a unit of energy defined as 1.0e-6 joule. μJ millijoule millijoule The millijoule is a unit of energy defined as 1.0e-3 joule. mJ centijoule centijoule The centijoule is a unit of energy defined as 1.0e-2 joule. cJ decijoule decijoule The decijoule is a unit of energy defined as 1.0e-1 joule. dJ decajoule decajoule The decajoule is a unit of energy defined as 1.0e1 joule. daJ hectojoule hectojoule The hectojoule is a unit of energy defined as 1.0e2 joule. hJ kilojoule kilojoule The kilojoule is a unit of energy defined as 1.0e3 joule. kJ megajoule megajoule The megajoule is a unit of energy defined as 1.0e6 joule. MJ gigajoule gigajoule The gigajoule is a unit of energy defined as 1.0e9 joule. GJ terajoule terajoule The terajoule is a unit of energy defined as 1.0e12 joule. TJ petajoule petajoule The petajoule is a unit of energy defined as 1.0e15 joule. PJ exajoule exajoule The exajoule is a unit of energy defined as 1.0e18 joule. EJ zettajoule zettajoule The zettajoule is a unit of energy defined as 1.0e21 joule. ZJ yottajoule yottajoule The yottajoule is a unit of energy defined as 1.0e24 joule. YJ prefixed joule 1 1 electronvolt electronvolt 电子伏特 The electronvolt is a unit of energy defined as 1.602177e-19 joule. eV 1.602177e-19 kiloelectronvolt kiloelectronvolt The kiloelectronvolt is a unit of energy defined as 1.0e3 electronvolt. keV megaelectronvolt megaelectronvolt The megaelectronvolt is a unit of energy defined as 1.0e6 electronvolt. MeV gigaelectronvolt gigaelectronvolt The gigaelectronvolt is a unit of energy defined as 1.0e9 electronvolt. GeV prefixed electronvolt 1 1 calorie (mean) mean calorie The mean calorie is a unit of energy defined as 4.19002 joule. cal c 4.19002 kilocalorie (mean) The kilocalorie (mean) is a unit of energy defined as 1.0e3 calorie (mean). kcal prefixed calorie (mean) 1 1 erg erg 尔格 The erg is a unit of energy defined as 1.0e-7 joule. erg 1.0e-7 megaerg megalerg The megaerg is a unit of energy defined as 1.0e6 erg. Merg watt hour watt-hour watthour W h W·h Wh kilowatt hour kilowatt-hour kilowatthour kW h kW·h kWh megawatt hour megawatt-hour megawatthour MW h MW·h MWh gigawatt hour gigawatt-hour gigawatthour GW h GW·h GWh terawatt hour terawatt-hour terawatthour TW h TW·h TWh British thermal unit (39 °F) 英国热力单位（39°F） 39 °F British thermal unit \BritishTermalUnitThirtyNineF Btu British thermal unit (59 °F) 英国热力单位（59°F） 59 °F British thermal unit \BritishTermalUnitFiftyNineF Btu British thermal unit (60 °F) 英国热力单位（60°F） 60 °F British thermal unit \BritishTermalUnitSixtyF Btu British thermal unit (International Table) 英国热力单位（国际表） International Table British thermal unit Btu_IT Btu_{IT} British thermal unit (mean) 英国热力单位（平均） mean British thermal unit Btu British thermal unit (thermochemical) 英国热力单位（热力化学） thermochemical British thermal unit Btu_th BTU_{th} calorie (15 °C) calorie (15 °C) 15 °C calorie 15 °C calorie cal_15 cal_{15} calorie (20 °C) calorie (20 °C) 20 °C calorie 20 °C calorie \calorieTwentyC cal_20 cal_{20} calorie (International Table) calorie (International Steam Table) International Table calorie International Steam Table calorie cal_IT cal_{IT} calorie (thermochemical) thermochemical calorie cal_th cal_{th} foot poundal The foot poundal is a unit of energy defined as 4.214011e-2 joule. 4.214011e-2 quad The quad is a unit of energy defined as 1.0e15 British thermal unit (International Table). 1.0e15 \quadUnit therm (EC) EC therm The EC therm is a unit of energy defined as 1.05506e8 joule. 1.05506e8 therm (US) US therm The US therm is a unit of energy defined as 1.054804e8 joule. 1.054804e8 ton of TNT The ton of TNT is a unit of energy defined as 4.184e9 joule. 4.184e9 joule per second joule per seconde J/s J s-1 J·s-1 power unit watt watt The watt is a unit of power defined as joule divided by second = newton times metre divided by second = volt times ampere = kilogram times square metre divided by second to the power 3. The watt is a unit of power defined as joule divided by second = newton times metre divided by second = volt times ampere = kilogram times square metre divided by second to the power 3. The watt is a derived unit in the International System of Units. W yoctowatt yoctowatt yW zeptowatt zeptowatt zW attowatt attowatt aW femtowatt femtowatt fW picowatt picowatt pW nanowatt nanowatt nW microwatt microwatt μW milliwatt milliwatt mW centiwatt centiwatt cW deciwatt deciwatt dW decawatt decawatt daW hectowatt hectowatt hW kilowatt kilowatt kW megawatt megawatt MW gigawatt gigawatt GW terawatt terawatt TW petawatt petawatt PW exawatt exawatt EW zettawatt zettawatt ZW yottawatt yottawatt YW prefixed watt 1 1 horsepower (boiler) boiler horsepower The boiler horsepower is a unit of power defined as 9.80950e3 watt. 9.80950e3 horsepower (British) British horsepower imperial horsepower The British horsepower is a unit of power defined as 7.4570e2 watt. 7.4570e2 horsepower (electric) electric horsepower The electric horsepower is a unit of power defined as 7.46e2 watt. 7.46e2 horsepower (metric) metric horsepower The metric horsepower is a unit of power defined as 7.354988e2 watt. PS 7.354988e2 horsepower (water) water horsepower The water horsepower is a unit of power defined as 7.46043e2 watt. 7.46043e2 kilocalorie (mean) per day kcal/d kcal d-1 kcal·d-1 ton of refrigeration The ton of refrigeration is a unit of power defined as 3.516853e3 watt. 3.516853e3 joule per kilogram joule per kilogram 焦耳每千克 J/kg J kg-1 J·kg-1 kilocalorie (mean) per hectogram kilocalorie per 100 gram kcal/hg kcal/100 g kcal hg-1 kcal·hg-1 kilojoule per hectogram kilojoule per hectogram kilojoule per 100 gram kilojoule per 100 gram kJ/hg kJ/100 g kJ hg-1 kJ·hg-1 specific energy unit radian per second radiaal per seconde rad/s rad s-1 rad·s-1 angular speed unit millisecond (angle) per year milliseconde (hoek) per jaar Wordt gebruikt om de waargenomen verandering van de positie van sterren uit te drukken (de proper motion). mas/yr radian per second squared radiaal per seconde kwadraat rad/s2 rad s-2 rad·s-2 angular acceleration unit pascal second pascal seconde Pa s Pa·s dynamic viscosity unit poise poise The poise is a unit of dynamic viscosity defined as 1.0e-1 pascal second (time). P 1.0e-1 centipoise centipoise cP prefixed poise 1 1 square metre per second vierkante meter per seconde m2/s m2 s-1 m2·s-1 kinematic viscosity unit stokes stokes The stokes is a unit of kinematic viscosity defined as 1.0e-4 square metre per second (time). St 1.0e-4 centistokes centistokes cSt prefixed stokes 1 1 watt per square metre watt per vierkante meter W/m2 W m-2 W·m-2 power density unit watt per steradian watt per steradiaal W/sr W sr-1 W·sr-1 radiant intensity unit watt per square metre steradian watt per vierkante meter steradiaal W/(m2 sr) W/(m2·sr) W m-2 sr-1 W·m-2·sr-1 radiance unit joule per cubic metre joule per kubieke meter J/m3 J m-3 J·m-3 energy density unit joule second joule seconde J s J·s action unit angular momentum unit erg second erg seconde erg s erg·s reciprocal pascal second omgekeerde pascal seconde Pa-1 s-1 Pa-1·s-1 (Pa s)-1 (Pa·s)-1 -1 fluidity unit rhe rhe The rhe is a unit of fluidity defined as 10 reciprocal pascal second (time). 1.0e1 gram per gram gram per gram g/g g g-1 g·g-1 gram per kilogram gram per kilogram g/kg g kg-1 g·kg-1 0.001 gram per hectogram gram per hectogram gram per 100 gram gram per 100 gram g/hg g/100 g g hg-1 g·hg-1 kilogram per kilogram kilogram per kilogram kg/kg kg kg-1 kg·kg-1 milligram per kilogram milligram per kilogram mg/kg mg kg-1 mg·kg-1 milligram per hectogram milligram per hectogram milligram per 100 gram milligram per 100 gram mg/hg mg/100 g mg hg-1 mg·hg-1 microgram per hectogram microgram per hectogram microgram per 100 gram microgram per 100 gram μg/hg μg/100 g μg hg-1 μg·hg-1 metre kilogram per second meter kilogram per seconde m kg/s m·kg/s m kg s-1 m·kg·s-1 momentum unit kilogram square metre kilogram vierkante meter kg m2 kg·m2 moment of inertia unit shear rate unit newton per metre newton per meter N/m N m-1 N·m-1 surface tension unit cubic metre per second kubieke meter per seconde m3/s m3 s-1 m3·s-1 volumetric flow rate unit cubic metre per year kubieke meter per jaar litre per hour liter per uur l/h l h-1 l·h-1 cubic metre per cubic metre kubieke meter per kubieke meter m3/m3 m3 m-3 m3·m-3 cubic millimetre per cubic millimetre kubieke millimeter per kubieke millimeter mm3/mm3 mm3 mm-3 mm3·mm-3 cubic centimetre per cubic centimetre kubieke centimeter per kubieke centimeter cm3/cm3 cm3 cm-3 cm3·cm-3 reciprocal watt omgekeerde watt W-1 -1 detectivity unit kilogram per second kilogram per seconde kg/s kg s-1 kg·s-1 gram per day gram per dag g/d g d-1 g·d-1 milligram per day milligram per dag mg/d mg d-1 mg·d-1 mass flow unit metre kilogram meter kilogram m kg m·kg prefixed metre prefixed gram 1 1 reciprocal gram omgekeerde gram g-1 -1 kilogram second to the power -2 kilogram seconde tot de macht -2 kg s-2 kg·s-2 gram per joule gram per joule Gram per joule is a unit of mass per energy. Gram per joule is a unit of mass per energy defined as gram divided by joule. Gram per joule is a derived unit in the International System of Units. g/J g J-1 g·J-1 kilogram per gigajoule kilogram per gigajoule Kilogram per gigajoule is a unit of mass per energy. Kilogram per gigajoule is a unit of mass per energy defined as kilogram divided by gigajoule. Kilogram per gigajoule is a derived unit in the International System of Units. kg/GJ kg GJ-1 kg·GJ-1 microgram per joule microgram per joule mg/J mg J-1 mg·J-1 mass per energy unit gram per metre gram per meter g/m g m-1 g·m-1 milligram per kilometre milligram per kilometer mg/km mg km-1 mg·km-1 gram per square metre gram per vierkante meter g/m2 g m-2 g·m-2 area density unit kilogram per square metre kilogram per vierkante meter kg/m2 kg m-2 kg·m-2 kilogram per hectare kilogram per hectare kg/ha kg ha-1 kg·ha-1 ounce (avoirdupois) per square yard (international) oz/yd2 oz yd-2 oz·yd-1 hectare day hectare dag ha d ha·d kilogram per hectare day kilogram per hectare dag kg/(ha d) kg ha-1 d-1 kg·ha-1·d-1 area density rate unit joule per square metre joule per vierkante meter J/m2 J m-2 J·m-2 megajoule per square metre megajoule per vierkante meter MJ/m2 MJ m-2 MJ·m-2 joule per square metre second joule per vierkante meter seconde J/(m2 s) J m-2 s-1 J·m-2·s-1 joule per square metre day joule per vierkante meter dag J/(m2 d) J m-2 d-1 J·m-2·d-1 kilojoule per square metre day kilojoule per vierkante meter dag kJ/(m2 d) kJ m-2 d-1 kJ·m-2·d-1 megajoule per square metre day megajoule per vierkante meter dag MJ/(m2 d) MJ m-2 d-1 MJ·m-2·d-1 gram per square metre second gram per vierkante meter seconde g/(m2 s) g m-2 s-1 g·m-2·s-1 gram per square metre day gram per vierkante meter dag g/(m2 d) g m-2 d-1 g·m-2·d-1 microgram per square metre second microgram per vierkante meter seconde mg/(m2 s) mg m-2 s-1 mg·m-2·s-1 tonne per cubic metre ton per kubieke meter t/m3 t m-3 t·m-3 watt square metre watt vierkante meter W m2 W·m2 reciprocal square metre reciprocal gram omgekeerde vierkante meter omgekeerde gram m-2 g-1 m-2·g-1 gram per megajoule gram per megajoule g/MJ g MJ-1 g·MJ-1 watt per cubic metre watt per kubieke meter W/m3 W m-3 W·m-3 watt per hertz watt per hertz W/Hz W Hz-1 W·Hz-1 watt per nanometre watt per nanometer W/nm W nm-1 W·nm-1 watt per square metre hertz watt per vierkante meter hertz W/(m2 Hz) W m-2 Hz-1 W·m-2·Hz-1 watt per square metre nanometre watt per vierkante meter nanometer W/(m2 nm) W m-2 nm-1 W·m-2·nm-1 watt per steradian square metre watt per steradiaal vierkante meter W/(sr m2) W sr-1 m-2 W·sr-1·m-2 watt per steradian square metre hertz watt per steradiaal vierkante meter hertz W/(sr m2 Hz) W sr-1 m-2 Hz-1 W·sr-1·m-2·Hz-1 square metre per gram vierkante meter per gram m2/g m2 g-1 m2·g-1 megametre per kilojoule 1000 kilometre per kilojoule 1000 km/kJ Mm/kJ megaeuro per petajoule megaeuro per megawatt gram per square metre metre g/(m2 m) g m-2 m-1 g·m-2·m-1 gram per square metre centimetre g/(m2 cm) g m-2 cm-1 g·m-2·cm-1 tonne per hectare t/ha t ha-1 t·ha-1 metre per second per metre meter per seconde per metre m/s/m metre per cubic metre meter per kubieke meter m/m3 m m-3 m·m-3 centimetre per cubic centimetre centimeter per kubieke centimeter cm/cm3 cm cm-3 cm·cm-3 square metre second vierkante meter seconde m2 s m2·s square metre day vierkante meter dag m2 d m2·d second per day seconde per dag s/d s d-1 s·d-1 reciprocal square metre reciprocal metre omgekeerde vierkante meter omgekeerde meter m-2 m-1 m-2·m-1 square metre hertz vierkante meter hertz m2 Hz m2·Hz square metre nanometre vierkante meter nanometer m2 nm m2·nm reciprocal square metre omgekeerde vierkante meter m-2 -2 reciprocal square centimetre omgekeerde vierkante centimeter cm-2 -2 column number density unit parts per million per year ppm/a ppm a-1 ppm·a-1 ppm/y ppm y-1 ppm·y-1 ppm/yr ppm yr-1 ppm·yr-1 reciprocal parts per million ppm-1 -1 second per square metre s/m2 s m-2 s·m-2 square metre per square metre day m2/(m2 d) m2 m-2 d-1 m2·m-2·d-1 square metre per square metre vierkante meter per vierkante meter m2/m2 m2 m-2 m2·m-2 second squared seconde kwadraat s2 2 yoctosecond squared yoctoseconde kwadraat ys2 2 zeptosecond squared zeptoseconde kwadraat zs2 2 attosecond squared attoseconde kwadraat as2 2 femtosecond squared femtoseconde kwadraat fs2 2 picosecond squared picoseconde kwadraat ps2 2 nanosecond squared nanoseconde kwadraat ns2 2 microsecond squared microseconde kwadraat μs2 2 millisecond squared milliseconde kwadraat ms2 2 centisecond squared centiseconde kwadraat cs2 2 decisecond squared deciseconde kwadraat ds2 2 decasecond squared decaseconde kwadraat das2 2 hectosecond squared hectoseconde kwadraat hs2 2 kilosecond squared kiloseconde kwadraat ks2 2 megasecond squared megaseconde kwadraat Ms2 2 gigasecond squared gigaseconde kwadraat Gs2 2 terasecond squared teraseconde kwadraat Ts2 2 petasecond squared petaseconde kwadraat Ps2 2 exasecond squared exaseconde kwadraat Es2 2 zettasecond squared zettaseconde kwadraat Zs2 2 yottasecond squared yottaseconde kwadraat Ys2 2 prefixed second (time) squared 1 2 1 second to the power -2 seconde tot de macht -2 s-2 -2 steradian square metre steradiaal vierkante meter sr m2 sr·m2 steradian square metre hertz steradiaal vierkante meter hertz sr m2 Hz sr·m2·Hz square metre steradian vierkante meter steradian m2 sr m2·sr litre per 100 kilometre liter per 100 kilometer litre per 100 kilometre liter per 100 kilometer l/100 km 100 kilometre 100 kilometer 100 km 100 time dimension dimensie van tijd T 0 0 1 0 0 0 0 mass dimension massadimensie M 0 1 0 0 0 0 0 number density dimension -3 0 0 0 0 0 0 column number density dimension -2 0 0 0 0 0 0 wavenumber dimension golfgetaldimensie -1 0 0 0 0 0 0 frequency dimension 0 0 -1 0 0 0 0 acceleration dimension versnellingdimensie 1 0 -2 0 0 0 0 density dimension dichtheiddimensie -3 1 0 0 0 0 0 specific volume dimension 3 -1 0 0 0 0 0 speed dimension snelheiddimensie 1 0 -1 0 0 0 0 force dimension krachtdimensie 1 1 -2 0 0 0 0 pressure dimension -1 1 -2 0 0 0 0 energy dimension 2 1 -2 0 0 0 0 power dimension 2 1 -3 0 0 0 0 specific energy, absorbed dose, or dose equivalent dimension 2 0 -2 0 0 0 0 angular speed dimension 0 0 -1 0 0 0 0 angular acceleration dimension 0 0 -2 0 0 0 0 dynamic viscosity dimension -1 1 -1 0 0 0 0 kinematic viscosity dimension 2 0 -1 0 0 0 0 power density dimension 0 1 -3 0 0 0 0 energy density dimension -1 1 -2 0 0 0 0 action or angular momentum dimension 2 1 -1 0 0 0 0 fluidity dimension 1 -1 1 0 0 0 0 volumetric flow rate dimension 3 0 -1 0 0 0 0 mass flow dimension 0 1 -1 0 0 0 0 thermodynamics thermodynamica temperature temperatuur 温度 Temperature is the extent to which an object is hot. temp T t θ thermodynamic temperature absolute temperatuur thermodynamische temperatuur Thermodynamic temperature is the absolute measure of temperature. Its zero point is the temperature at which the particle constituents of matter have minimal motion and can be no colder. Thermodynamic temperature is a base quantity in the International System of Units. T Celsius temperature Celsiustemperatuur t θ Fahrenheit temperature Fahrenheittemperatuur T Rankine temperature Rankinetemperatuur T Réaumur temperature Réaumurtemperatuur T heat warmte quantity of heat Heat is any flow of energy from one body or system to another due to a difference in temperature. Q internal energy inwendige energie The internal energy of a thermodynamic system, or a body with well-defined boundaries is the total of the kinetic energy due to the motion of molecules (translational, rotational, vibrational) and the potential energy associated with the vibrational and electric energy of atoms within molecules or crystals. U heat flux density entropy entropie 熵单位 Entropy is a measure of the unavailability of a system’s energy to do work. S heat capacity warmtecapaciteit 热容量 Heat capacity is the heat required to increase the temperature of a system or substance one unit temperature. C_p C_v specific heat capacity soortelijke warmte specifieke warmte specifieke warmtecapaciteit c_p c_v heat flow rate Φ q specific entropy thermal conductivity thermische geleidbaarheid Termal conductivity indicates the ability of a material to conduct heat. κ k K λ thermal diffusivity thermal diffusivity unit thermal insulance thermal resistance temperature rate temperatuur-rate heating rate heat transfer coefficient volumetric heat capacity kelvin kelvin 开 K triple point of water 1/273.16 of the thermodynamic temperature of the triple point of water The kelvin is a unit of temperature defined as 1/273.16 of the thermodynamic temperature of the triple point of water. The kelvin is a unit of temperature defined as 1/273.16 of the thermodynamic temperature of the triple point of water. The kelvin is a base unit in the International System of Units. thermodynamic temperature unit temperature unit yoctokelvin yoctokelvin The yoctokelvin is a unit of temperature defined as 1.0e-24 kelvin. yK zeptokelvin zeptokelvin The zeptkelvin is a unit of temperature defined as 1.0e-21 kelvin. zK attokelvin attokelvin The attokelvin is a unit of temperature defined as 1.0e-18 kelvin. aK femtokelvin femtokelvin The femtokelvin is a unit of temperature defined as 1.0e-15 kelvin. fK picokelvin picokelvin The picokelvin is a unit of temperature defined as 1.0e-12 kelvin. pK nanokelvin nanokelvin The nanokelvin is a unit of temperature defined as 1.0e-9 kelvin. nK microkelvin microkelvin The microkelvin is a unit of temperature defined as 1.0e-6 kelvin. μK millikelvin millikelvin The millikelvin is a unit of temperature defined as 1.0e-3 kelvin. mK centikelvin centikelvin The centikelvin is a unit of temperature defined as 1.0e-2 kelvin. cK decikelvin decikelvin The decikelvin is a unit of temperature defined as 1.0e-1 kelvin. dK decakelvin decakelvin The decakelvin is a unit of thermodynamic temperature defined as 1.0e1 kelvin. daK hectokelvin hectokelvin The hectokelvin is a unit of thermodynamic temperature defined as 1.0e2 kelvin. hK kilokelvin kilokelvin The kilokelvin is a unit of thermodynamic temperature defined as 1.0e3 kelvin. kK megakelvin megakelvin The megakelvin is a unit of thermodynamic temperature defined as 1.0e6 kelvin. MK gigakelvin gigakelvin The gigakelvin is a unit of thermodynamic temperature defined as 1.0e9 kelvin. GK terakelvin terakelvin The terakelvin is a unit of thermodynamic temperature defined as 1.0e12 kelvin. TK petakelvin petakelvin The petakelvin is a unit of thermodynamic temperature defined as 1.0e15 kelvin. PK exakelvin exakelvin The exakelvin is a unit of thermodynamic temperature defined as 1.0e18 kelvin. EK zettakelvin zettakelvin The zettakelvin is a unit of thermodynamic temperature defined as 1.0e21 kelvin. ZK yottakelvin yottakelvin The yottakelvin is a unit of thermodynamic temperature defined as 1.0e24 kelvin. YK prefixed kelvin 1 1 degree Celsius graad Celsius 摄氏度 centigrade The degree Celsius is a unit of temperature defined as 1 kelvin. The degree Celsius is a unit of temperature defined as 1 kelvin. The degree Celsius is a derived unit in the International System of Units. °C Celsius temperature unit yoctodegree Celsius yoctograad Celsius The yoctodegree Celsius is a unit of temperature defined as 1.0e-24 degree Celsius. y°C zeptodegree Celsius zeptograad Celsius The zeptdegree Celsius is a unit of temperature defined as 1.0e-21 degree Celsius. z°C attodegree Celsius attograad Celsius The attodegree Celsius is a unit of temperature defined as 1.0e-18 degree Celsius. a°C femtodegree Celsius femtograad Celsius The femtodegree Celsius is a unit of temperature defined as 1.0e-15 degree Celsius. f°C picodegree Celsius picograad Celsius The picodegree Celsius is a unit of temperature defined as 1.0e-12 degree Celsius. p°C nanodegree Celsius nanograad Celsius The nanodegree Celsius is a unit of temperature defined as 1.0e-9 degree Celsius. n°C microdegree Celsius micrograad Celsius The microdegree Celsius is a unit of temperature defined as 1.0e-6 degree Celsius. μ°C millidegree Celsius milligraad Celsius The millidegree Celsius is a unit of temperature defined as 1.0e-3 degree Celsius. m°C centidegree Celsius centigraad Celsius The centidegree Celsius is a unit of temperature defined as 1.0e-2 degree Celsius. c°C decidegree Celsius decigraad Celsius The decidegree Celsius is a unit of temperature defined as 1.0e-1 degree Celsius. d°C prefixed degree Celsius 1 1 degree Fahrenheit graad Fahrenheit The degree Fahrenheit is a unit of temperature defined as 5.555556e-1 kelvin. °F 5.555556e-1 degree Rankine graad Rankine The degree Rankine is a unit of temperature defined as 5.555556e-1 kelvin. °R °Ra 5.555556e-1 degree Réaumur graad Réaumur The degree Réaumur is a unit of temperature defined as 1.25 kelvin. °Ré °Re °R 1.25 Fahrenheit temperature unit Rankine temperature unit Réaumur temperature unit joule per kelvin joule per kelvin J/K J K-1 J·K-1 entropy unit heat capacity unit joule per kelvin kilogram joule per kelvin kilogram J/(K kg) J/(K·kg) J K-1 kg-1 J·K-1·kg-1 specific entropy unit specific heat capacity unit watt per metre kelvin watt per meter kelvin W/(m K) W/(m·K) W m-1 K-1 W·m-1·K-1 thermal conductivity unit square metre kelvin vierkante meter kelvin m2 K m2·K square metre kelvin per watt vierkante meter kelvin per watt m2 K/W m2·K/W m2 K W-1 m2·K·W-1 thermal insulance unit kelvin per watt kelvin per watt K/W K W-1 K·W-1 thermal resistance unit watt per square metre kelvin watt per vierkante meter kelvin W/m2 K W/(m2·K) W-1 m2 K W-1·m2·K heat transfer coefficient unit degree Celsius per hour graad Celsius per uur °C/h °C h-1 °C·h-1 degree Celsius per minute graad Celsius per minuut °C/min °C min-1 °C·min-1 degree Celsius per second graad Celsius per seconde °C/s °C s-1 °C·s-1 temperature rate unit kelvin kilogram kelvin kilogram K kg K·kg metre kelvin meter kelvin m K m·K pascal second square metre pascal seconde vierkante meter Pa s m2 Pa·s·m2 reciprocal atmosphere (standard) omgekeerde atmosfeer (standaard) atm-1 -1 degree Celsius day graad Celsius dag °C d °C·d reciprocal kelvin omgekeerde kelvin K-1 -1 reciprocal degree Celsius omgekeerde graad Celsius °C-1 -1 reciprocal degree Celsius day omgekeerde graad Celsius dag (°C d)-1 -1 cubic metre kelvin m3 K m3·K joule per cubic metre kelvin joule per kubieke meter kelvin J/m3 K J/(m3·K) J-1 m3 K J-1·m3·K volumetric heat capacity unit Kelvin scale Kelvinschaal 开氏温标 International Kelvin Temperature scale of 1990 triple point of water thermodynamic temperature 3 to 5 on the Kelvin scale 3 to 5 13.8033 on the Kelvin scale 13.8033 ~17 on the Kelvin scale ~17 ~20.3 on the Kelvin scale ~20.3 24.5561 on the Kelvin scale 24.5561 54.3584 on the Kelvin scale 54.3584 83.8058 on the Kelvin scale 83.8058 234.3156 on the Kelvin scale 234.3156 273.16 on the Kelvin scale 273.16 302.9146 on the Kelvin scale 302.9146 429.7485 on the Kelvin scale 429.7485 505.078 on the Kelvin scale 505.078 692.677 on the Kelvin scale 692.677 933.473 on the Kelvin scale 933.473 1234.93 on the Kelvin scale 1234.93 1337.33 on the Kelvin scale 1337.33 1357.77 on the Kelvin scale 1357.77 thermodynamic temperature scale Celsius scale Celsiusschaal 摄氏温标 International Celsius Temperature scale of 1990 -270.15 to -268.15 on the Celsius scale -270.15至-268.15摄氏度 One of the fixed points defining the Celsius scale -270.15 to -268.15 -259.3467 on the Celsius scale -259.3467摄氏度 -259.3467 ~-256.15 on the Celsius scale 〜-256.15摄氏度 ~-256.15 ~-252.85 on the Celsius scale 〜-252.85摄氏度 ~-252.85 -248.5939 on the Celsius scale -248.5939摄氏度 -248.5939 -218.7916 on the Celsius scale -218.7916摄氏度 -218.7916 -189.3442 on the Celsius scale -189.3442摄氏度 -189.3442 -38.8344 on the Celsius scale -38.8344摄氏度 -38.8344 0.01 on the Celsius scale 0.01摄氏度 0.01 29.7646 on the Celsius scale 29.7646摄氏度 29.7646 156.5985 on the Celsius scale 156.5985摄氏度 156.5985 231.928 on the Celsius scale 231.928摄氏度 231.928 419.527 on the Celsius scale 419.527摄氏度 419.527 660.323 on the Celsius scale 660.323摄氏度 660.323 961.78 on the Celsius scale 961.78摄氏度 961.78 1064.18 on the Celsius scale 1064.18摄氏度 1064.18 1084.62 on the Celsius scale 1084.62摄氏度 1084.62 1 -273.15 Celsius temperature scale Fahrenheit scale Fahrenheitschaal 华氏温标 1.8 -459.67 Rankine scale Rankineschaal 兰金规模 1.8 0 Réaumur scale Réaumurschaal 列氏温标 1 -218.52 Fahrenheit temperature scale Rankine temperature scale Réaumur temperature scale thermodynamic temperature dimension absolute-temperatuurdimensie Θ 0 0 0 0 1 0 0 entropy or heat capacity dimension 2 1 -2 0 -1 0 0 specific entropy or specific heat capacity dimension 2 0 -2 0 -1 0 0 thermal conductivity dimension 1 1 -3 0 -1 0 0 thermal insulance dimension 0 -1 3 0 1 0 0 thermal resistance dimension -2 -1 3 0 1 0 0 heat transfer coefficient dimension 0 1 -3 0 -1 0 0 volumetric heat capacity dimension -1 1 -2 0 -1 0 0 electromagnetism elektromagnetisme electric current current Electric current is the flow of electric charge. It is a base quantity in the International System of Units. Electric current is electric charge divided by time. I i current density Current density is the density of flow of a conserved charge. It is a derived quantity in the International System of Units. Current density is electric current divided by area. J j electric charge electrische lading quantity of electricity lading Electric charge is a conserved property of some subatomic particles, which determines their electromagnetic interaction. It is a derived quantity in the International System of Units. Electric charge is electric current times time. Q q electric potential electrische potentiaal voltage voltage Electric potential is the potential energy per unit charge associated with static (time-invariant) electric field. V φ electromotive force Electromotive force is that which causes a flow of current. E emf potential difference potentiaalverschil U V capacitance capaciteit electric capacitance electrische capaciteit Capacitance is the ability to hold electrical charge. It is a derived quantity in the International System of Units. Capacitance is electric charge divided by electric potential. C electrical resistance electric resistance resistance Electrical resistance is the degree to which an object opposes an electric current through it. It is a derived quantity in the International System of Units. Electrical resistance is electric potential divided by electric current. R electrical conductance electric conductance conductance Electrical conductance is a measure of how easily electricity flows along a certain path through an electrical element. G electric field electrisch veld electric field strength Electric field is a property of the space surrounding an electric charge or in the presence of a time-varying magnetic field which exerts a forceon other electrically charged objects. E electric charge density charge density Electric charge density is the amount of electric charge in a volume. It is a derived quantity in the International System of Units. Electric charge density is electric charge divided by volume. electric flux density magnetic flux Magnetic flux through any area perpendicular to a magnetic field is the product of the area by the field strength. Φ magnetic field magnetic field strength magnetic field intensity magnetizing field H magnetic flux density magnetic field magnetic induction B permeance (electromagnetic) electromagnetic permeance Electromagnetic permeance is a measure of flux for a number of current-turns in magnetic circuit. Λ inductance Inductance is that property in an electrical circuit where a change in the current flowing through that circuit induces an electromotive force that opposes the change in current. permeability of free space vacuum permeability μ permittivity ε electric dipole moment Electric dipole moment is a measure of the polarity of a system of electric charges. p reluctance τ admittance Admittance is a measure of how easily a circuit or device will allow a current to flow. It is electric current divided by electric potential. Y electrical resistivity electrical conductivity magnetomotive force F ampere ampère A constant current that produces an attractive force of 2e–7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum The ampere is a unit of electric current defined as the constant current that produces an attractive force of 2e–7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum. The ampere is a unit of electric current defined as the constant current that produces an attractive force of 2e–7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum. The ampere is a base unit in the International System of Units. electric current unit magnetomotive force unit yoctoampere yoctoampère The yoctoampere is a unit of electric current defined as 1.0e-24 ampere. yA zeptoampere zeptoampère The zeptampere is a unit of electric current defined as 1.0e-21 ampere. zA attoampere attoampère The attoampere is a unit of electric current defined as 1.0e-18 ampere. aA femtoampere femtoampère The femtoampere is a unit of electric current defined as 1.0e-15 ampere. fA picoampere picoampère The picoampere is a unit of electric current defined as 1.0e-12 ampere. pA nanoampere nanoampère The nanoampere is a unit of electric current defined as 1.0e-9 ampere. nA microampere microampère The microampere is a unit of electric current defined as 1.0e-6 ampere. μA milliampere milliampère The milliampere is a unit of electric current defined as 1.0e-3 ampere. mA centiampere centiampère The centiampere is a unit of electric current defined as 1.0e-2 ampere. cA deciampere deciampère The deciampere is a unit of electric current defined as 1.0e-1 ampere. dA decaampere decaampère The decaampere is a unit of electric current defined as 1.0e1 ampere. daA hectoampere hectoampère The hectoampere is a unit of electric current defined as 1.0e2 ampere. hA kiloampere kiloampère The kiloampere is a unit of electric current defined as 1.0e3 ampere. kA megaampere megaampère The megaampere is a unit of electric current defined as 1.0e6 ampere. MA gigaampere gigaampère The gigaampere is a unit of electric current defined as 1.0e9 ampere. GA teraampere teraampère The teraampere is a unit of electric current defined as 1.0e12 ampere. TA petaampere petaampère The petaampere is a unit of electric current defined as 1.0e15 ampere. PA exaampere exaampère The exaampere is a unit of electric current defined as 1.0e18 ampere. EA zettaampere zettaampère The zettaampere is a unit of electric current defined as 1.0e21 ampere. ZA yottaampere yottaampère The yottaampere is a unit of electric current defined as 1.0e24 ampere. YA prefixed ampere 1 1 abampere abampère The abampere is a unit of electric current defined as 10 ampere. abA 1.0e1 biot biot The biot is a unit of electric current defined as 10 ampere. Bi 1.0e1 statampere statampère The statampere is a unit of electric current defined as 3.335641e-10 ampere. statA 3.335641e-10 gilbert gilbert The gilbert is a unit of electric current defined as 7.957747e-1 ampere. Gb 7.957747e-1 ampere per square metre ampère per vierkante meter Ampere per square metre is a unit of current density defined as ampere divided by square metre. Ampere per square metre is a unit of current density defined as ampere divided by square metre. Ampere per square metre is a derived unit in the International System of Units. A/m2 A m-2 A·m-2 current density unit second ampere seconde ampère s A s·A electric charge unit coulomb coulomb The coulomb is a unit of electric charge defined as ampere times second = farad times volt. The coulomb is a unit of electric charge defined as ampere times second = farad times volt. The coulomb is a derived unit in the International System of Units. C yoctocoulomb yoctocoulomb The yoctocoulomb is a unit of electric charge defined as 1.0e-24 coulomb. yC zeptocoulomb zeptocoulomb The zeptcoulomb is a unit of electric charge defined as 1.0e-21 coulomb. zC attocoulomb attocoulomb The attocoulomb is a unit of electric charge defined as 1.0e-18 coulomb. aC femtocoulomb femtocoulomb The femtocoulomb is a unit of electric charge defined as 1.0e-15 coulomb. fC picocoulomb picocoulomb The picocoulomb is a unit of electric charge defined as 1.0e-12 coulomb. pC nanocoulomb nanocoulomb The nanocoulomb is a unit of electric charge defined as 1.0e-9 coulomb. nC microcoulomb microcoulomb The microcoulomb is a unit of electric charge defined as 1.0e-6 coulomb. μC millicoulomb millicoulomb The millicoulomb is a unit of electric charge defined as 1.0e-3 coulomb. mC centicoulomb centicoulomb The centicoulomb is a unit of electric charge defined as 1.0e-2 coulomb. cC decicoulomb decicoulomb The decicoulomb is a unit of electric charge defined as 1.0e-1 coulomb. dC decacoulomb decacoulomb The decacoulomb is a unit of electric charge defined as 1.0e1 coulomb. daC hectocoulomb hectocoulomb The hectocoulomb is a unit of electric charge defined as 1.0e2 coulomb. hC kilocoulomb kilocoulomb The kilocoulomb is a unit of electric charge defined as 1.0e3 coulomb. kC megacoulomb megacoulomb The megacoulomb is a unit of electric charge defined as 1.0e6 coulomb. MC gigacoulomb gigacoulomb The gigacoulomb is a unit of electric charge defined as 1.0e9 coulomb. GC teracoulomb teracoulomb The teracoulomb is a unit of electric charge defined as 1.0e12 coulomb. TC petacoulomb petacoulomb The petacoulomb is a unit of electric charge defined as 1.0e15 coulomb. PC exacoulomb exacoulomb The exacoulomb is a unit of electric charge defined as 1.0e18 coulomb. EC zettacoulomb zettacoulomb The zettacoulomb is a unit of electric charge defined as 1.0e21 coulomb. ZC yottacoulomb yottacoulomb The yottacoulomb is a unit of electric charge defined as 1.0e24 coulomb. YC prefixed coulomb 1 1 abcoulomb abcoulomb The abcoulomb is a unit of electric charge defined as 10 coulomb. abC 1.0e1 faraday faraday The faraday is a unit of electric charge defined as 9.648531e4 coulomb. franklin franklin The franklin is a unit of electric charge defined as 3.335641e-10 coulomb. Fr 3.335641e-10 statcoulomb statcoulomb The statcoulomb is a unit of electric charge defined as 3.335641e-10 coulomb. statC 3.335641e-10 ampere hour ampère-uur A h A·h Ah milliampere hour milliampère-uur mA h mA·h mAh watt per ampere watt per ampère W/A W A-1 W·A-1 electric potential unit volt volt The volt is a unit of electric potential defined as watt divided by ampere = joule divided by coulomb = newton times metre divided by ampere times second = kilogram times square metre divided by ampere times second to the power 3. The volt is a unit of electric potential defined as watt divided by ampere = joule divided by coulomb = newton times metre divided by ampere times second = kilogram times square metre divided by ampere times second to the power 3. The volt is a derived unit in the International System of Units. V yoctovolt yoctovolt yV zeptovolt zeptovolt zV attovolt attovolt aV femtovolt femtovolt fV picovolt picovolt pV nanovolt nanovolt nV microvolt microvolt μV millivolt millivolt mV centivolt centivolt cV decivolt decivolt dV decavolt decavolt daV hectovolt hectovolt hV kilovolt kilovolt kV