Unit Converter

Pick a group, type a number and choose the units. Every conversion uses the exact official definition.

Result
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    Questions & answers

    Why is the answer empty?

    Type a number in Value and choose both units. Use your language's decimal mark (1.5 or 1,5) and no letters or unit signs in the box.

    Why does a … appear at the end of some answers?

    Some conversions never end as a decimal, like 1 hectare = 2.47105381467… acres. Every digit shown is correct and … means more digits follow; nothing is rounded. The exact value is also shown as a fraction.

    Why is my 1 TB drive shown as 931 GB on my computer?

    Drive makers count 1 TB = 1,000,000,000,000 bytes. Many computers count in powers of 1024 (GiB): 1 TB = 931.32257461… GiB. Choose GiB, MiB or KiB in To to see the computer's number.

    Which gallon, cup and ton are used?

    Both gallons are in the list: US gallon = 3.785411784 L and UK gallon = 4.54609 L. Cup, pint, tablespoon and teaspoon are US measures. For tons, pick tonne (1000 kg), short ton (US, 2000 lb) or long ton (UK, 2240 lb).

    How do I convert a temperature?

    Open Temperature, type the number and choose °C, °F or K. 98.6 °F = 37 °C and 0 °F = −17.7̅ °C (the 7 repeats). The steps show how it was worked out.

    What is a decimal (land unit)?

    A decimal is 1/100 of an acre = 40.468564224 m² = 435.6 ft², used for land in Bangladesh and India. Local units like katha and bigha are not listed because their size differs from place to place.

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