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Unit Converter

Convert between metric and imperial units for length, weight, temperature, volume, area, speed, data size and time. Pick a quantity, choose units and type a value.

  • Free, no sign-up
  • Runs locally in your browser
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Your files are processed on this device and are never uploaded to a server.

How to use the Unit Converter

  1. 1

    Choose a quantity such as length or weight.

  2. 2

    Pick the from and to units.

  3. 3

    Type a value.

Exact factors

Conversions use the exact international definitions, for example 1 inch = 2.54 cm exactly and 1 pound = 0.45359237 kg exactly.