Length, weight and temperature — converted instantly, both directions.
Pick a category, enter a value and choose your units — the tool converts through a base unit (meters, kilograms, Celsius) so every pair is exact.
Temperature uses the proper offset formulas, not just scaling — because 0°C isn’t 0°F.
Factors use international definitions (1 inch = 2.54 cm exactly); results round to 6 decimals.
Length, weight and temperature cover the everyday conversions — more categories are on the roadmap.
Yes — all math runs locally in your browser.
Miles or kilometers? Pounds or kilograms? Convert between metric and imperial units across length, weight, temperature, volume and more — with precise factors, not rough guesses.