Measurement desk
Online Unit Converter
Choose a category, enter a number, and convert between compatible units. Incompatible dimensions cannot be mixed: meters do not convert into kilograms. Calculations run in the browser with JavaScript Number; display rounding does not change the internal value.
Converted value
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Original value:
From unit:
To unit:
Conversion relationship:
How This Conversion Works
See the Conversion
Original measurement:
Converted measurement:
Conversion relationship:
0 K
Supported categories
- Length converter — mm, cm, m, km, in, ft, yd, mi
- Weight and mass converter — mg, g, kg, t, oz, lb, US short ton
- Temperature converter — °C, °F, K with absolute-zero checks
- Volume converter — metric and US customary liquid units
- Area converter — squared units, acres, hectares
- Speed converter — m/s, km/h, mph, ft/s, kn
- Time unit converter — ms through weeks
- Digital storage converter — SI and IEC prefixes
Empty inputs, text such as 12abc, NaN, and Infinity are rejected. Physical quantities other than temperature require nonnegative values. Read how to convert units of measurement or browse conversion charts.