Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and other temperature units with precision
Common Conversions
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Temperature Units
Commonly Used Temperature Units
Celsius(°C)
Metric system; water freezes at 0 °C and boils at 100 °C
Fahrenheit(°F)
Used mainly in the US; water freezes at 32 °F, boils at 212 °F
Kelvin(K)
Absolute temperature scale used in science; 0 K is absolute zero
Scientific and Specialized Units
Rankine(°R)
Absolute scale like Kelvin but in Fahrenheit increments (used in thermodynamics in the US)
Delisle(°De)
Obsolete; used in 18th-century France (inverse scale: 0 °De = boiling point, 150 °De = freezing point of water)
Newton(°N)
Proposed by Isaac Newton; rarely used
Réaumur(°Re)
0 °Re = freezing, 80 °Re = boiling (used historically in Europe)
Rømer(°Rø)
Early Danish scale; not used anymore