Math & Conversion
Unit Converter
Convert common metric and imperial units for length, weight, and volume, or convert Celsius and Fahrenheit temperatures.
How to use
Enter the values requested above and choose a calculation option. Convert common metric and imperial units for length, weight, and volume, or convert Celsius and Fahrenheit temperatures. The result is calculated in your browser.
Formula
Linear conversion = value × source factor ÷ target factor. °F = °C × 9 ÷ 5 + 32.
Example
How many centimeters are in 1 inch?
1 inch equals 2.54 centimeters.
Frequently asked questions
- Are temperature conversions simple unit multiplications?
- No. Celsius and Fahrenheit use different zero points, so the converter applies an offset as well as a scale.
- Are my entries stored?
- No. The calculation runs in your browser, and this page does not save the values you enter.