Convert length, mass, temperature, volume, speed, area, and data units.
Convert everyday measurements across length, mass, temperature, US liquid volume, speed, area, and decimal SI data units. The converter updates as you type, supports negative values where they make sense, and keeps the measurement system visible so factors are not confused. It runs locally with fixed conversion factors; it is not a scientific unit database.
1 kilometre → miles0.621371192 miles0°C → Fahrenheit32°FMost units are converted through a factor relative to a base unit. Temperature is different: Celsius, Fahrenheit, and Kelvin require both scaling and an offset. Volume choices are labelled US liquid units, and data choices use decimal SI factors.
The liquid volume options are explicitly labelled US customary units. US and UK gallons and pints are not interchangeable.
Length and mass conversions use multiplication by a factor, while Celsius, Fahrenheit, and Kelvin also require an offset.
No. This tool labels its data category as decimal SI, so KB, MB, GB, and TB use powers of 1,000. Binary units such as KiB are a different convention.
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