Unit converters
Convert length, weight, temperature, volume, area, data storage and speed using transparent unit factors.
Length Converter
Convert common metric and imperial length units.
Weight Converter
Convert kilograms, grams, pounds and ounces.
Temperature Converter
Convert Celsius, Fahrenheit and Kelvin.
Volume Converter
Convert litres, millilitres, gallons and cups.
Area Converter
Convert square metres, hectares, acres and square feet.
Data Storage Converter
Convert bytes, KB, MB, GB and TB.
Speed Converter
Convert km/h, mph, m/s and knots.
How CalcNator handles unit conversion
Most converters use a shared base unit: the input is converted to the base and then converted to the requested output unit.
Temperature is handled separately because Celsius, Fahrenheit and Kelvin require offsets as well as scale factors.
For measurements, keep the precision of the original data in mind. A converter can display many decimal places even when the source measurement was only approximate.
Read the Unit Conversion Guide for dimensional checks, rounding and common conversion mistakes.