What is this unit converter?
This tool converts values between the everyday measurement units people actually search for — metres and feet, kilograms and pounds, Celsius and Fahrenheit, litres and gallons, and more. Switch the category tabs above to jump between length, weight, temperature, area, volume, and speed, all using the same simple amount-and-units layout.
How to use it
- Pick a category from the tabs — length, weight, temperature, area, volume, or speed.
- Type the amount you want to convert.
- Choose the unit you're converting from and the unit you want to.
- Hit the round ⇄ button to flip the two units instantly.
- Press Convert, or tap a quick-conversion chip for a common pair.
Good to know
Conversions use standard, internationally recognised conversion factors (for example, 1 inch is exactly 2.54 cm, and 1 pound is exactly 0.45359237 kg), so results are accurate to several decimal places. Temperature uses proper formulas rather than a simple ratio, since Celsius, Fahrenheit, and Kelvin scales don't share a common zero point.
About & privacy
This converter uses standard, internationally recognised conversion factors, and every calculation happens locally in your browser — the numbers you type are never sent to or stored on our servers. It's one of Convertly's free, ad-supported reference tools; see the full privacy policy for details.