Unit Converter

This free unit converter handles conversions across twelve categories — length, weight and mass, temperature, area, volume, speed, time, digital data, pressure, energy, power and angle — covering everything from metres to feet, kilograms to pounds and Celsius to Fahrenheit through to gigabytes to megabits, pascals to psi and joules to kilowatt-hours. Pick a category, choose your units, and the result updates instantly.

Beyond a single from/to pair, a live conversion table shows your value expressed in every unit of the chosen category at once, so you can read off several equivalents in one glance. Use the swap button to reverse the two units, copy the result with one click, and set precision to Auto (which trims trailing zeros and switches to scientific notation for very large or small numbers) or a fixed number of decimal places. Common conversion shortcuts jump straight to popular pairs, and temperature conversions show the exact formula used.