Length, mass, volume & temperature

Unit Converter

Convert common metric and imperial units with full precision and readable results.

Method

How this tool works

Linear units convert through a common base unit. Temperature uses the exact Celsius, Fahrenheit and Kelvin formulas.

Worked example

1 mile equals exactly 1.609344 kilometres. 32°F equals 0°C.

Use responsibly

Assumptions & limitations

US and imperial gallons differ, so choose the correct one. Results are rounded for display while calculations keep full precision.

Last reviewed: 20 July 2026
Calculation and copy checked for this release.