Unit Converter
Convert length, weight, temperature, volume, and more.
Convert between metric and imperial units across length, mass, temperature, volume, area, speed, digital storage, and time. Enter a value and instantly see it in every unit in that category — all in your browser.
Runs entirely in your browser — nothing is uploaded.
How to use the unit converter
- 1Pick a category (length, mass, temperature, and more).
- 2Enter a value and choose the unit to convert from.
- 3Read the result, or see it in every unit at once.
Frequently asked questions
Which measurement systems are supported?
Both metric and imperial (US) units are included in each category, so you can convert in either direction.
How is temperature handled?
Celsius, Fahrenheit, and Kelvin use proper offset formulas, not simple ratios, so conversions are exact.