Calculators & Converters
Unit Converter
Convert common measurement units both ways. Temperature is handled separately from the factor-based conversions.
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This runs entirely in your browser. Nothing you type is sent to a server.
How to convert a unit
- 1Choose a quantity, such as length or pressure.
- 2Enter a value and pick the units to convert from and to.
- 3Read the result. Switching the units swaps the conversion.
Questions
Which gallon is used?
Volume includes both the US liquid gallon and the UK gallon. They are different sizes, so the labels are kept distinct.
Are the factors exact?
The factors are the standard international conversions, such as 1 inch = 25.4 mm exactly and 1 pound = 0.45359237 kg exactly. Displayed results are rounded.