Unit Converter
Convert between units of length, weight, temperature and speed instantly. Supports all common units: metres, feet, miles, kilograms, pounds, Celsius, Fahrenhei…
Convert between units of length, weight, temperature and speed instantly. Supports all common units: metres, feet, miles, kilograms, pounds, Celsius, Fahrenheit and more.
How to use
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Choose a category
Select Length, Weight, Temperature or Speed.
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Enter a value
Type the value to convert and choose source and target units.
Frequently Asked Questions
Length (mm, cm, m, km, in, ft, yd, mi), Weight (mg, g, kg, t, oz, lb), Temperature (°C, °F, K) and Speed (m/s, km/h, mph, knots).
Conversions use exact or high-precision factors and are accurate to 6 significant figures.
Temperature conversion uses the standard mathematical formulas: °C to °F = (°C × 9/5) + 32, °C to K = °C + 273.15.
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