Converts length, mass and temperature units.
Unit Convert is a fast, browser-based unit converter for everyday developer and engineering work, handling length, mass, and temperature in a single tool. Enter a value, pick a 'from' and 'to' unit, and get an answer rounded to six significant figures. It is handy whenever you need a quick, accurate conversion without reaching for a calculator or an online service.
Length covers mm, cm, m, km, in, ft, yd, and mi; mass covers mg, g, kg, oz, and lb; temperature covers Celsius (c), Fahrenheit (f), and Kelvin (k). Unit names are case-insensitive and surrounding spaces are ignored.
Each result is rounded to six significant figures using standard floating-point math, so very large or very small values are shown compactly without losing meaningful precision.
No. The converter only works within the same category (length to length, mass to mass, temperature to temperature). Mixing categories returns an error, as does an unrecognized unit or a non-numeric value.
No. Every conversion runs entirely in your browser with plain JavaScript. Nothing you type is sent to a server or any external service.