Unit Converter

Convert length, weight, volume, temperature, area, and speed in seconds.

How It Works

Each unit is defined by a pair of functions to and from a base unit (meters for length, kilograms for weight, etc.). Converting from A to B converts A to base first, then base to B — so adding new units only requires two functions each, never an N×N conversion table. Temperature uses offsets rather than ratios. All math runs in your browser with no network requests.