Unit Converter
Twelve categories, one input. Type a value and watch every unit update — or focus on one pair and see the exact formula behind it. Everything runs in your browser.
Compound input works: 6'3" · 5ft 10in · 10 st 4 lb · 1.5e3 km
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Temperature note: this tool converts absolute temperatures. A temperature interval (a difference) converts by ratio instead — 1 °C of warming equals 1.8 °F.