9 free tools
Unit Converters
Convert between metric and imperial units in an instant — length, weight, temperature, area, volume, speed, data and more.
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Length Converter
Convert between metric and imperial units of length and distance in an instant.
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Temperature Converter
Convert instantly between Celsius, Fahrenheit and Kelvin — type in any field.
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Weight Converter
Convert between metric and imperial units of weight and mass instantly.
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Color Converter
Enter a HEX colour and get its RGB and HSL values instantly, with a live preview swatch.
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Area Converter
Convert between square metres, feet, acres, hectares and more — instantly and accurately.
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Volume Converter
Convert litres, millilitres, gallons, cups, pints and cooking spoons in one place.
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Speed Converter
Convert km/h, mph, metres per second, knots and feet per second in a tap.
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Data Storage Converter
Convert bits, bytes, KB, MB, GB and TB — including the binary KiB / MiB / GiB units.
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Unit Converter
Every measurement converter in one place — length, weight, temperature, area, volume, speed…
About these tools
Every converter uses the internationally agreed definitions, so results are accurate to full precision and simply rounded for readability. Handy for recipes, DIY, travel, science and overseas specs. Browse more in our full tool directory or read the guides in our articles.
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