# terminal-size > Reliably get the terminal window size Because [`process.stdout.columns`](https://nodejs.org/api/tty.html#tty_writestream_columns) doesn't exist when run [non-interactively](http://www.tldp.org/LDP/abs/html/intandnonint.html), for example, in a child process or when piped. This module even works when all the TTY file descriptors are redirected! Confirmed working on macOS, Linux, and Windows. ## Install ```sh npm install terminal-size ``` ## Usage ```js import terminalSize from 'terminal-size'; terminalSize(); //=> {columns: 143, rows: 24} ``` ## API ### terminalSize() Returns an `object` with `columns` and `rows` properties. ## Related - [terminal-size-cli](https://github.com/sindresorhus/terminal-size-cli) - CLI for this module