Conversion definitions and formulas.
Keep the base unit and standard explicit when a conversion affects a specification or cost.
More UnitFold tools
Convert units without losing context.
Convert length, mass, temperature, and decimal or binary data units with adjustable precision.
Kilometers to miles, with visible precision.
Convert kilometers to miles with the exact factor and adjustable display precision.
Celsius to Fahrenheit, formula included.
Convert Celsius to Fahrenheit with the formula and adjustable precision.
Length and mass
One international mile is exactly 1,609.344 metres. One international avoirdupois pound is exactly 0.45359237 kilograms.
Data units
SI kilobytes use powers of 1,000. IEC kibibytes use powers of 1,024. The labels are not interchangeable.
Temperature
Kelvin and Celsius share the same interval, with 0 °C equal to 273.15 K. Fahrenheit uses both an offset and a different interval.
UnitFold
Convert everyday units and estimate location-specific running costs.
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