Calculators

Unit converter

Convert length, mass, temperature, time, volume, area and speed units.

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Your result

A little input. A useful result.

Adjust the example inputs, then select Convert units.

A LITTLE KNOW-HOW

About this tool

Convert a measurement between units in the same category. Temperature conversions include their offsets, and volume labels explicitly distinguish US customary units from metric units.

How to use it

  1. 1

    Enter the measurement value.

  2. 2

    Choose source and destination units from the same category.

  3. 3

    Convert the value and copy the result with its unit.

Questions, answered

Why can I not convert grams to liters?

Mass and volume measure different things. Converting between them requires the material’s density, which this general unit converter does not assume.

Which cups and gallons are used?

The labels US customary cups and US gallons refer to US liquid measures. They are different from metric cups and Imperial gallons. Time days are fixed 24-hour durations.