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Enter a value to convert.
A good unit converter gives answers you can trust: it uses the exact definition of each unit, such as an inch being exactly 25.4 millimetres, and avoids the tiny floating-point errors that creep into many online converters. This one converts length, weight, temperature and volume as you type, with no button to press. It all runs in your browser, so nothing you enter is sent or stored.
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Enter a value to convert.
Results show up to 8 significant digits. Weights, lengths and volumes use each unit's exact definition; US and UK gallons and pints are different sizes, so both are listed.