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Unit Converter

Convert units instantly across length, weight, temperature, volume, speed, and more

Length Converter

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Unit Conversion Explained

A unit converter transforms a numerical value expressed in one unit of measurement into its equivalent in another unit within the same category. Whether you need to convert kilometres to miles, Celsius to Fahrenheit, gigabytes to megabytes, or litres to gallons — this tool covers the most common everyday conversions instantly and accurately.

Most conversions use the base unit method: every unit is stored as a factor relative to a common base (e.g. metres for length, kilograms for weight). The input value is first converted to the base unit, then divided by the target unit's factor to produce the result. Temperature is handled separately using direct mathematical formulas because its scales have different zero points.

Conversion Categories

  • Length — Millimetre, Centimetre, Metre, Kilometre, Inch, Foot, Yard, Mile, Nautical Mile.
  • Weight (Mass) — Milligram, Gram, Kilogram, Tonne, Ounce, Pound, Stone.
  • Temperature — Celsius, Fahrenheit, Kelvin.
  • Time — Millisecond, Second, Minute, Hour, Day, Week, Month, Year.
  • Area — mm², cm², m², km², Inch², Foot², Yard², Acre, Hectare.
  • Volume — Millilitre, Centilitre, Litre, Cubic Metre, Teaspoon, Tablespoon, Cup, Pint, Quart, Gallon.
  • Speed — m/s, km/h, mph, Knot, Mach.
  • Data Storage — Bit, Byte, KB, MB, GB, TB, PB.