Unit converter
Convert length, weight, temperature, volume, area and speed between US and metric units on one page.
How to use the unit converter
- Choose what to convert, such as Length or Temperature.
- Type a value and pick the units.
- Read the result and the same value in every other unit.
Frequently asked questions
How do I convert Fahrenheit to Celsius?
Subtract 32 and multiply by 5/9. For example, 72 °F is (72 − 32) × 5/9 = 22.2 °C.
How many centimeters are in an inch?
Exactly 2.54 centimeters.
Are cups and gallons US or UK units?
US units by default. UK (imperial) gallons are listed separately.
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