Convert values between length, weight, temperature, area, volume, and speed units. Performs all calculations client-side in your browser.
How to use it
- Pick a category such as length, weight or temperature.
- Choose the unit you are converting from and the one you want.
- Enter the value and read the converted result.
Frequently asked questions
Which categories are covered?
Length, weight, temperature, area, volume and speed, each with the common metric and imperial units.
Why is temperature different from the other conversions?
Because its scales do not share a zero point. Celsius to Fahrenheit needs an offset as well as a factor, so it cannot be a simple multiplication.
Are US and imperial gallons the same?
No, and it is a classic source of error. A US gallon is about 3.79 litres, an imperial gallon about 4.55, a difference of roughly twenty percent.