Convert common length, weight, temperature, area, volume and speed units without switching tools.
Choose the measurement type below. Temperature uses exact scale formulas; other categories convert through a defined base unit.
Length, mass, area, volume and speed values are converted through an exact defined base-unit factor. Temperature uses the Celsius, Fahrenheit and Kelvin scale equations rather than a simple multiplier.
Use the measurement selector to change dimensions while keeping the same interaction pattern. Cross-dimension conversions are intentionally blocked by only showing units that belong to the selected category.
Volume includes the US liquid gallon. Imperial gallons are not currently included.
No. Fahrenheit and Kelvin require offsets as well as scaling, so the calculator uses their full equations.
No. Length can only convert to length, mass to mass, and so on. That prevents meaningless cross-dimension results.