Synonym for SI unit s sec unit of time, synonym for second Synonym for SI unit A amp unit of electric current, synonym for ampere Synonym for SI unit K °K degree_kelvin degrees_kelvin degree_K degrees_K degreeK degreesK deg_K degs_K degK degsK unit of temperature, synonym for kelvin Synonym for SI unit cd candle unit of luminous intensity, synonym for candela Synonym for SI unit mole einstein unit of chemical mass, synonym for mole Synonym for SI unit Hz baud Bd bps unit of frequency, synonym for hertz Synonym for SI unit degree_Celsius ℃ celsius degree_C degrees_C degreeC degreesC deg_C degs_C degC degsC unit of temperature, synonym for 'K @ 273.15' (degree_Celsius) Synonym for SI unit knot kt kts unit of speed, synonym for nautical_mile/hour Constant; value is +-30e15 6.02214179e23/mol avogadro_constant number of constituent particles (usually atoms or molecules) per mole of a given substance Constant 0.01 percent % number of parts per hundred Constant 1 ppv parts per volume Constant 1e-6 ppm ppmv parts per million Constant 1e-9 ppb ppbv parts per billion Constant 1e-12 ppt pptv parts per trillion Constant 1e-15 ppq ppqv parts per quadrillion lg(re 1) B logarithmic unit used to express dimensionless ratios; a value of 0 B (0 dB) corresponds to a ratio of 1 0.9 arc_degree grade 1/100 of a right angle (90 degrees) 2 pi rad circle cycle turn revolution rotation unit of angle in a plane signifying a full 360-degree circle arc_degree degree_north degrees_north degree_N degrees_N degreeN degreesN degree_east degrees_east degree_E degrees_E degreeE degreesE degree_true degrees_true degree_T degrees_T degreeT degreesT unit of angle on a sphere -1 degree_east degree_west degrees_west degree_W degrees_W degreeW degreesW unit of angle on a sphere (units for negative direction) 2.916667e-2 kg assay_ton reference unit of mass for a body of ore; roughly equal to 29167 milligrams 2.834952e-2 kg avoirdupois_ounce unit of mass equal to 1/16 avoirdupois pound, commonly used in the United States (16 oz = 1 pound = 7000 grains) 4.5359237e-1 kg avoirdupois_pound pound lb unit of mass in avoirdupois system of weights (a system commonly used in United States) 2e-4 kg carat unit of mass equal to 0.2 gram (defined 1907) 6.479891e-5 kg grain gr unit of mass equal to 1/7000 pound 5.080235e1 kg long_hundredweight unit of mass; a British hundredweight, which is 8 stone * 14 pounds/stone 1.555174e-3 kg pennyweight unit of mass; based on historical US troy weight system (is 1/20 troy ounce) 4.535924e1 kg short_hundredweight unit of mass, a US hundredweight, which is 100 pounds 14.59390 kg slug unit of mass associated with Imperial units; a mass that accelerates by 1 ft/s2 when a force of one pound-force (lbF) is exerted on it 3.110348e-2 kg troy_ounce apothecary_ounce unit of mass; based on historical US troy weight system (is 1/12 troy pound) 3.732417e-1 kg troy_pound apothecary_pound unit of mass; based on historical US troy weight system (is 5760 grain) 20 grain scruple unit of mass in apothecaries' weight system (is 1/3 apdram) 60 grain apdram unit of mass in apothecaries' weight system (is 1/8 apounce) exact avoirdupois_ounce/16 dram dr unit of mass in the avoirdupois system (the system commonly used in the United States) 480 grain apounce unit of mass in apothecaries' weight system (is 1/16 appound) 5760 grain appound unit of mass in apothecaries' weight system (is same as a troy pound) 94 pound bag unit of mass, for a traditional bag of portland cement 2000 pound short_ton ton unit of mass based on US weight system 2240 pound long_ton unit of mass based on British imperial weight system 1e-15 m fermi unit of length equal to 10e-15 meters, a typical length-scale of nuclear physics 9.46073e15 m light_year unit of length equal to the distance traversed by light in one mean solar year (365.2422 days), a typical length-scale of astronomy 1e-6 m micron unit of length, a typical length-scale of technology and science fields 2.54e-5 m mil unit of length equal to 0.001 inch, a typical length-scale for measuring wire diameters 3.085678e16 m parsec unit of length corresponding to the distance at which the mean radius of the earth's orbit subtends an angle of one second of arc, a typical length-scale of astronomy 3.514598e-4 m printers_point unit of length equal to 1/72.27 inch, the original (standardized 1886) unit for measuring font size and other small items on a printed page (see also big_point) 2.011684e1 m chain unit of length equal to 66 feet (4 poles), or 1/10 furlong, a typical (historical) scale of land surveying 12 printers_point printers_pica pica unit of length equal to 1/6 inch (12 printers points) nautical_mile nmile unit of length in the US Customary System, equal to 6,076 feet; typically used for air and sea navigation (1200/3937) m US_survey_foot US_survey_feet unit of length used for earlier survey data in some countries, slightly different than the current international foot 3 US_survey_feet US_survey_yard unit of length used in earlier survey data in some countries, slightly different than the current international yard 5280 US_survey_feet US_survey_mile US_statute_mile unit of length used for earlier survey data in some countries, slightly slightly different than the current international mile 16.5 US_survey_feet rod pole perch unit of length equal to one-fourth of a surveyor's chain 660 US_survey_feet furlong unit of length equal to 1/8 mile or 10 chains 6 US_survey_feet fathom unit of length equal to 6 feet in the imperial and US customary systems, typically used for measuring depth of water 2.54 cm international_inch inch in unit of length equal to 25.4 mm by definition, used in imperial and US customary systems 12 international_inches international_foot international_feet foot feet ft unit of length equal to 12 international inches, in the imperial and US customary systems; primarily used in the United States 3 international_feet international_yard yard yd unit of length equal to 3 international feet, in the imperial and US customary systems; primarily used in the United States 5280 international_feet international_mile mile mi unit of length equal to 5280 feet, equal to 12 international inches, in the imperial and US customary systems; primarily used in the United States and other smaller countries with ties to the US or United Kingdom inch/72 big_point unit of length equal to 1/72 inch, standardized unit in modern computer-based publishing for measuring font size and other small items on a printed page (contrast to printers_point) inch/3 barleycorn unit of length based in medieval laws of England and Wales, defining an inch as being 3 barleycorns long (length of a corn of barley); still the basis for current shoe sizes in Great Britain and Ireland 191.835 foot arpentlin unit of length in French regions; a linear arpent is of length 10 perch (10 rod) exact rotation/second rotation_per_second rotations_per_second rps cps unit of angular velocity exact rotation/minute rpm unit of angular velocity measuring the angular distance covered by a rotating object, divided by the amount of time used to cover that distance; measured perpendicular to the plane of rotation, with direction usually indicated by the right-hand rule 1.111111e-7 kg/m denier unit of lineic mass density for fibers, equal to the mass in grams per 9000 meters (more common in United States and United Kingdom); a single strand of silk is approximately one denier exact 1e-6 kg/m tex unit of lineic mass density for fibers, defined as mass in grams per 1000 meters (more common in Canada and Continental Europe) 5.72135e-11 kg/(Pa.s.m^2) perm_0C perms_0C unit of mass per unit time (includes flow) for how fast water vapor flows through substance, or permeance; equals 1 gram of water vapor per hour, per square meter, per millimeter of mercury at 0 degrees C 5.74525e-11 kg/(Pa.s.m^2) perm_23C perms_23C unit of mass per unit time for how fast water vapor flows through substance, or permeance; equals 1 gram of water vapor per hour, per square meter, per millimeter of mercury at 23 degrees C 5.067075e-10 m^2 circular_mil unit of area equal to the area of a one-mil diameter circle porous solid permeability 9.869233e-13 m^2 darcy unit of area for measuring permeability to fluid, equal to 1 cubic centimeter of fluid with 1 centipoise viscosity in 1 second through a 1-square-centimeter cross section of porous medium 1 centimeter long at 1 atmosphere exact 160 rod^2 acre unit of area in the US Customary System, used in land and sea floor measurement, equal to 43560 square feet An "acre.foot", however, is 1233.4867714897 m^3. Odd. 1.233489e3 m^3 acre_foot acre_feet unit of volume used to describe large-scale water resources in the United State; equal to the volume of one acre of surface area with one foot of depth depth 2.359737e-3 m^3 board_foot board_feet unit of volume equal to the cubic contents of a piece of lumber one foot square and one inch thick, used in measuring logs and lumber in the United States and Canada 3.523907e-2 m^3 bushel bu unit of volume defined as 2150.42 cubic inches or 4 pecks in the US Customary system (and formerly in England), where it is used as a dry measure exact bushel/4 peck pk unit of volume defined as 537.6 cubic inches in the US Customary system (and formerly in England), where it is used as a dry measure exact 4.546090e-3 m^3 Canadian_liquid_gallon unit of volume for liquids in the Imperial system 4.404884e-3 m^3 US_dry_gallon unit of volume for dry measure in the US Customary system, defined as 1/2 peck or 1/8 bushel exact cm^3 cc unit of volume equal to the volume of a cube 1 centimeter on each side exact 1 m^3 stere unit of volume equal to a cubic meter, originally defined primarily as a measure for firewood 2.831685 m^3 register_ton unit of volume used for internal capacity of ships, equal to 100 cubic feet exact US_dry_gallon/4 US_dry_quart dry_quart unit of volume for dry measure in the US Customary system, equal to 1/32 US bushel exact US_dry_gallon/8 US_dry_pint dry_pint unit of volume for dry measure in the US Customary system, equal to 1/2 US dry quart 3.785412e-3 m^3 US_liquid_gallon liquid_gallon gallon unit of volume for liquid measure in the US Customary system, defined as 3.785412 liters The following is the definition of the petroleum industry 42 US_liquid_gallon barrel bbl unit of volume used by US and Canadian petroleum organizations The following is exact regardless of the definition of "barrel" barrel/4 firkin unit of volume whose exact quantity depends on the type of barrel on which it is defined; in this table it is defined based on the oil barrel used by the petroleum industry exact US_liquid_gallon/4 US_liquid_quart liquid_quart quart unit of volume for liquid measure in the US Customary system, equal to 1/4 liquid gallon exact US_liquid_gallon/8 US_liquid_pint liquid_pint pint pt unit of volume for liquid measure in the US Customary system, equal to 1/8 liquid gallon exact US_liquid_gallon/16 US_liquid_cup liquid_cup cup unit of volume for liquid measure in the US Customary system, equal to 1/16 liquid gallon exact US_liquid_gallon/32 US_liquid_gill liquid_gill gill unit of volume for liquid measure in the US Customary system, equal to 1/32 liquid gallon exact US_liquid_gallon/128 US_fluid_ounce US_liquid_ounce fluid_ounce liquid_ounce oz floz unit of volume for liquid measure in the US Customary system, equal to 1/128 liquid gallon exact US_fluid_ounce/2 tablespoon Tbl Tbsp tbsp Tblsp tblsp unit of volume for liquid measure in the US Customary system, equal to 1/2 liquid ounce exact US_fluid_ounce/8 fluid_dram fldr unit of volume for liquid measure in the apothecary system, equal to 1/8 liquid ounce exact tablespoon/3 teaspoon tsp unit of volume defined as 1/3 tablespoon, the actual volume of which can vary depending on the measurement system (but is based on the US Customary system in this database) exact 4.546090e-3 m^3 UK_liquid_gallon unit of volume for liquid measure in the Imperial system exact UK_liquid_gallon/4 UK_liquid_quart unit of volume for liquid measure in the Imperial system, equal to 1/4 liquid gallon exact UK_liquid_gallon/8 UK_liquid_pint unit of volume for liquid measure in the Imperial system, equal to 1/8 liquid gallon exact UK_liquid_gallon/16 UK_liquid_cup unit of volume for liquid measure in the Imperial system, equal to 1/16 liquid gallon exact UK_liquid_gallon/32 UK_liquid_gill unit of volume for liquid measure in the Imperial system, equal to 1/32 liquid gallon exact UK_liquid_gallon/160 UK_fluid_ounce UK_liquid_ounce unit of volume for liquid measure in the Imperial system, equal to 1/160 liquid gallon lg(re (1e-6 m)^3) BZ Bz logarithmic unit used to compare the reflectivity (Z) of an unknown remote object, to the reflective return created by a rain with a density of a single drop with a diameter of 1 mm in every 1 m^3 of air; is the base unit for "dBz", which is the typical logarithmic unit for measuring atmospheric radar reflectivity; a value of 0 Bz (0 dBz) corresponds to the return from a single cubic micron; a value of 6 Bz (60 dBz) corresponds to extremely heavy rain. 1e-8 s shake unit of time approximating the lifetime of an individual neutron, useful for describing very brief durations, e.g., in nuclear physics 8.616409e4 s sidereal_day unit of time that it takes the earth to complete one revolution with respect to a star, roughly 23 hours, 56 minutes, 4 seconds 3.590170e3 s sidereal_hour unit of time equal to 1/24 sidereal day 5.983617e1 s sidereal_minute unit of time equal to 1/60 sidereal hour 0.9972696 s sidereal_second unit of time equal to 1/60 sidereal minute 3.155815e7 s sidereal_year unit of time for the earth to make one complete revolution around the sun, relative to the fixed stars 3.15569259747e7 s tropical_year year yr unit of time; Interval between 2 successive passages of sun through vernal equinox (365.242198781 days). See http://www.ast.cam.ac.uk/pubinfo/leaflets/, http://aa.usno.navy.mil/AA/, and http://adswww.colorado.edu/adswww/astro_coord.html 29.530589 day lunar_month unit of time equal to the average time between successive new or full moons; equal to approximately 29 days, 12 hours, 44 minutes 365 day common_year unit of time corresponding to a 'normal' calendar year, that is, one without insertion of a leap day 366 day leap_year unit of time corresponding to a calendar year with a leap day inserted 365.25 day Julian_year unit of time recognized by the International Astronomical Union for use in astronomy, defined as 365.25 days of 86400 seconds 365.2425 day Gregorian_year unit of time based on the Gregorian Calendar, the one commonly used today; approximates the tropical year as 365 + 97/400 days 27.321661 day sidereal_month unit of time based on 1/12 of the sidereal year 27.321582 day tropical_month unit of time based on 1/12 of the tropical year 14 day fortnight unit of time commonly defined as 14 days 7 day week unit of time commonly defined as 7 days multiple values have been proposed for the amount of time represented by a 'jiffy' 0.01 s jiffy unit of time used in computer animation as a method of defining playback rate 1e9 year eon unit of time defined in astronomy as 1 billion years year/12 month unit of time defined as the average length of time for a calendar month exact 1e6 m^3/s sverdrup unit of volume transport, used almost exclusively to measure the volumetric rate of ocean currents exact 9.806650 m/s^2 standard_free_fall unit of acceleration corresponding to the nominal gravitational acceleration of an object in a vacuum near the surface of earth should be local standard_free_fall gravity unit of acceleration synonymous with standard rate of free fall (in earth's gravity) exact gravity 1000 kg/m^3 conventional_water water H2O h2o specifies the acceleration at the earth's surface of a substance with the density of water gravity 999.972 kg/m^3 water_4C waters_4C water_39F waters_39F specifies the acceleration at the earth's surface of a substance with the density of water at 4 degrees C gravity 999.001 kg/m^3 water_60F waters_60F specifies the acceleration at the earth's surface of a substance with the density of water at 60 degrees F gravity 13595.10 kg/m^3 mercury_0C mercuries_0C mercury_32F mercuries_32F conventional_mercury conventional_mercuries Hg specifies the acceleration at the earth's surface of a substance with the density of mercury at 0 degrees C gravity 13556.8 kg/m^3 mercury_60F mercuries_60F specifies the acceleration at the earth's surface of a substance with the density of mercury at 60 degrees F standard_free_fall force unit of force equivalent to the force generated by the effect of gravity exact 1e-5 N dyne unit of force, equal to the force that produces an acceleration of one centimeter per second per second on a mass of one gram (the standard centimeter-gram-second unit of force) exact 9.806650e-3 N pond unit of force, equal to the magnitude of the force exerted by one gram of mass in a 9.80665 m/s2 gravitational field exact 9.806650 N force_kilogram kilogram_force kilograms_force kgf unit of force, equal to the magnitude of the force exerted by one kilogram of mass in a 9.80665 m/s2 gravitational field exact 2.780139e-1 N force_ounce ounce_force ounces_force ozf unit of force, equal to the magnitude of the force exerted by one ounce of mass in a 9.80665 m/s2 gravitational field exact 4.4482216152605 N force_pound pound_force pounds_force lbf unit of force, equal to the magnitude of the force exerted by one pound of mass in a 9.80665 m/s2 gravitational field exact 1.382550e-1 N poundal unit of force, that which is necessary to accelerate 1 pound-mass to 1 foot per second per second exact gram force gram_force grams_force force_gram gf unit of force, equal to the magnitude of the force exerted by one gram of mass in a 9.80665 m/s2 gravitational field exact 2000 force_pound force_ton ton_force tons_force unit of force, equal to the magnitude of the force exerted by one ton of mass in a 9.80665 m/s2 gravitational field (specifically a short ton of mass) exact 1000 lbf kip unit of force, equal to the magnitude of the force exerted by one thousand pounds of mass in a 9.80665 m/s2 gravitational field exact 1.01325e5 Pa standard_atmosphere atmosphere atm unit of pressure, an international reference pressure intended to represent the mean atmospheric pressure at mean sea level at the latitude of Paris, France exact; note that the symbol 'at' clashes with that of the katal ('kat'), the SI unit of catalytic activity 1 kg gravity/cm2 technical_atmosphere at unit of pressure equal to one kilogram force per square centimeter cm H2O cm_H2O cmH2O unit of pressure derived from pressure head calculations using metrology; represents the pressure exerted by a column of water of 1 cm height at 4 degrees C exact inch water_39F inch_H2O_39F inches_H2O_39F unit of pressure representing the pressure exerted by a column of water of 1 inch height at 39 degrees F exact inch water_60F inch_H2O_60F inches_H2O_60F unit of pressure representing the pressure exerted by a column of water of 1 inch height at 60 degrees F foot water foot_water feet_water foot_H2O feet_H2O footH2O feetH2O ftH2O fth2o unit of pressure representing the pressure exerted by a column of water of 1 foot height at 4 degrees C cm Hg cm_Hg cmHg unit of pressure representing the pressure exerted by a column of mercury of 1 cm height at 0 degrees C exact mm mercury_0C millimeter_Hg_0C millimeters_Hg_0C unit of pressure representing the pressure exerted by a column of mercury of 1 mm height at 0 degrees C exact inch mercury_32F inch_Hg_32F inches_Hg_32F unit of pressure representing the pressure exerted by a column of mercury of 1 inch height at 32 degrees F exact inch mercury_60F inch_Hg_60F inches_Hg_60F unit of pressure representing the pressure exerted by a column of mercury of 1 inch height at 60 degrees F mm Hg millimeter_Hg millimeters_Hg torr mm_Hg mm_hg mmHg mmhg unit of pressure representing the pressure exerted by a column of mercury of 1 mm height at 0 degrees C; approximately (within 0.000015%, generally below measurement error) 1 Torr, which is 1/760 standard atmospheric pressure inch Hg inch_Hg inches_Hg in_Hg inHg unit of pressure representing the pressure exerted by a column of mercury of 1 inch height at 0 degrees C exact 1 pound gravity/in^2 psi unit of pressure representing the pressure exerted, due to gravity, by a one-pound mass, of area one square inch; commonly referred to as "pounds per square inch" exact kip/in^2 ksi unit of pressure representing the pressure exerted, due to gravity, by a 1000-pound mass, of area one square inch exact 0.1 N/m^2 barie barye unit of pressure equal to one dyne per square centimeter sound pressure level lg(re 20e-6 Pa) B_SPL logarithmic unit used to compare the sound pressure of an unknown sound to a standard reference sound pressure; is the base unit for "dB_SPL", a more typical logarithmic unit for measuring sound pressure (the SI unit for sound pressure is pascal); the standard reference sound pressure in air or other gases is 20 microPascal, which is usually considered the threshold of human hearing (at 1 kHz) exact 1e-1 Pa.s poise unit of dynamic viscosity, corresponding to 0.1 pascal-second (pascal-second: a fluid placed between two plates, when one plate is pushed sideways with a shear stress of one pascal, moves a distance equal to the thickness of the layer between the plates in one second) exact 1e-4 m^2/s stokes St unit of kinematic viscosity, measuring the ratio of the dynamic viscosity to the density of the fluid; water at 20 degrees C has a kinematic viscosity about 100 stokes, or more cmomonly, 1 cSt exact 10/(Pa.s) rhe unit of fluidity (reciprocal of velocity), measured in reciprocal poise exact 1e-7 J erg unit of work, equal to the amount of work done by a force of one dyne exerted for a distance of one centimeter (in CGS base units, one gram centimeter-squared per second-squared) exact 1.05505585262e3 J IT_Btu IT_Btus Btu Btus unit of energy, equal to the energy needed to cool or heat one pound of water by one degree F; this uses the International Steam Table (IT) calorie , defined by the Fifth International Conference on the properties of Steam (1956) exact (reference NIST Guide to SI Units) 1.05506e8 J EC_therm unit of energy legally defined by the Council Directive of 20 December 1979, Council of the European Communities (now the European Union, EU);.roughly equal to 100,000 IT_Btu exact 4.184000 J thermochemical_calorie unit of heat energy defined as 4.184 Joules exactly (International Standard ISO 31-4: Quantities and units, Part 4: Heat); approximately the energy needed to increase the temperature of 1 gram of water by 1 C exact 4.1868 J IT_calorie calorie cal unit of heat energy used in thermochemistry, the International Steam Table (IT) calorie defined by the Fifth International Conference on the properties of Steam (1956) by definition 4.184 MJ/kg TNT unit of energy; approximately the energy released by the detonation of a given amount of mass of TNT by definition 4.184e9 J ton_TNT tons_TNT unit of energy; approximately the energy released by the detonation of a 1000 kilograms of TNT exact 1.054804e8 J US_therm therm thm unit of energy legally defined in the U.S. Federal Register of July 27, 1968, and the legal unit used by the U.S. natural gas industry exact watt.hour watthour unit of energy equal to the product of the power in watts and the time in hours (if the energy is being transmitted or used at a constant rate (power) over a period of time); one watt is equal to 1 Joule/second exact 1e9 eV bev unit of energy corresponding to 1 billion electron volts (eV) exact V.A voltampere VA unit of electric power equal to the product of one volt and one ampere, equivalent to one watt for direct current systems and a unit of apparent power for alternating current systems 9.80950e3 W boiler_horsepower unit of power equal to the power required to evaporate 34.5 lb of fresh water at 212 degrees F in one hour; describes a boiler's capacity to deliver steam to a steam engine shaft_horsepower is a unit of power as delivered by a drive shaft at its output (e.g., of a ship, aircraft engine, or helicopter rotor; typically not automobiles due to drive train losses) 7.456999e2 W shaft_horsepower horsepower hp unit of power originally corresponding to the estimated typical power of draft horses, calculated as lifting 33000 pounds one foot in one minute (550 foot-pounds/second) 7.35499e2 W metric_horsepower unit of power corresponding to a calculation of 75 kilogram-meters/second exact 7.460000e2 W electric_horsepower unit of power defined in the International System of Units as exactly 746 W; generally used for power used by electrical machines 7.46043e2 W water_horsepower unit of power used in the U.S. primarily in rating pumps; calculated as pump capacity Q (gallons per minute) times pump pressure ("head") of P (feet of head), divided by 3956 water horsepower; the calculation assumes water density is 8 1/3 pounds per U.S. gallon, which is not exact. 7.4570e2 W UK_horsepower unit of power originally corresponding to the estimated typical power of draft horses, calculated as lifting 33000 pounds one foot in one minute (550 foot-pounds/second), as calculated/specified in the United Kingdom 12000 Btu/hr refrigeration_ton ton_of_refrigeration tons_of_refrigeration unit of power describing the heat-extraction capacity of cooling equipment; defined as the heat absorbed by melting 1 short ton of pure ice at 0 degrees C in 24 hours lg(re 1 W) BW unit of power in decibel scale, referenced to 1 watt; the power in bel-watts is equal to 100 times the base 10 logarithm of the power in watts (making decibel-watt, the more common term, 10 times the base 10 log of the power in watts) lg(re 1 mW) Bm unit of power in decibel scale, referenced to 1 milliwatt; the power in bel-milliwatts is equal to 100 times the base 10 logarithm of the power in milliwatts (making decibel-milliwatt, the more common term, 10 times the base 10 log of the power in milliwatts) 1.55e-1 K.m^2/W clo unit of thermal resistance used in describing the insulating value of clothing; the amount of thermal resistance needed to maintain in comfort a resting subject in a normally ventilated room (air movement 10 cm/sec) at a temperature of 20 degrees C and a humidity less than 50% 10 A abampere basic unit of electricity in the electromagnetic CGS system of units 7.957747e-1 A gilbert unit of electricity/magnetism 3.335640e-10 A statampere unit of electricity/magnetism 10 A biot basic unit of electricity in the electromagnetic CGS system of units (same as abampere), named after Jean-Baptiste Biot exact 1e9 F abfarad unit of electricity/magnetism exact 1e-9 H abhenry unit of electricity/magnetism exact 1e9 S abmho unit of electricity/magnetism exact 1e-9 ohm abohm unit of electricity/magnetism exact 1e-8 V abvolt unit of electricity/magnetism 1.602176487e-19 C e unit of electricity/magnetism 9.64957e4 C chemical_faraday unit of electricity/magnetism 9.65219e4 C physical_faraday unit of electricity/magnetism 9.648531e4 C C12_faraday faraday unit of electricity/magnetism exact 1e-9 T gamma unit of electricity/magnetism exact 1e-4 T gauss unit of electricity/magnetism exact 1e-8 Wb maxwell unit of electricity/magnetism 7.957747e1 A/m oersted Oe unit of electricity/magnetism 3.335640e-10 C statcoulomb unit of electricity/magnetism 1.112650e-12 F statfarad unit of electricity/magnetism 8.987554e11 H stathenry unit of electricity/magnetism 1.112650e-12 S statmho unit of electricity/magnetism 8.987554e11 ohm statohm unit of electricity/magnetism 2.997925e2 V statvolt unit of electricity/magnetism 1.256637e-7 Wb unit_pole unit of electricity/magnetism lg(re 1 V) BV unit of electricity/magnetism rms voltage lg(re 0.775 V) Bv unit of electricity/magnetism lg(re 1e-6 V) BµV unit of electricity/magnetism K/1.8 °R degree_rankine degrees_rankine degreeR degreesR degree_R degrees_R degR degsR deg_R degs_R unit of thermodynamic temperature °R @ 459.67 °F ℉ fahrenheit degree_fahrenheit degrees_fahrenheit degreeF degreesF degree_F degrees_F degF degsF deg_F degs_F unit of thermodynamic temperature 1.076391e-1 lx footcandle unit of illumination exact 3.426259 cd/m^2 footlambert unit of illumination exact (1e4/pi) cd/m^2 lambert unit of illumination exact 1e4 cd/m^2 stilb sb unit of illumination exact 1e4 lm/m^2 phot ph unit of illumination exact 1 cd/m^2 nit nt unit of illumination exact 4.184000e4 J/m^2 langley unit of illumination exact cd/(pi m^2) blondel apostilb unit of illumination exact 100/m kayser exact gravity geopotential dynamic gp exact 2056 hours work_year exact work_year/12 work_month exact 1e-6 m^2 s^-1 K kg^-1 potential_vorticity_unit PVU 1 count 1 bit 8 octet byte 446.2 micromoles/meter^2 dobson DU 1/avogadro_constant molecule molec nucleon nuc