Are unit conversions exact?

Standard metric/imperial conversions (length, area, weight, volume, speed, time, temperature) are mathematically exact. Indian land units are approximate and region-variable, see the Land Unit Converter's assumptions.

Converters

Length, area, weight and other unit converters, including Indian land units.

Length Converter

Convert between metres, feet, miles, kilometres and more.

Area Converter

Convert between square feet, square metres, acres, hectares and more.

Weight Converter

Convert between kilograms, pounds, grams, ounces and more.

Volume Converter

Convert between litres, gallons, cubic feet and cubic metres.

Speed Converter

Convert between km/h, mph, m/s and knots.

Time Converter

Convert between seconds, minutes, hours, days and weeks.

Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin.

Converters

Frequently asked questions

Are unit conversions exact?