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Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin

How to use the temperature converter

Type in what you want to convert from. For example, if you know something is 28 degrees Celsius, type 28 in the Celsius field. Then the conversions will show immediately in the other two fields (in this case 301.15 K and 82.4 °F).

All input fields are calculators in themselves, which means you can type in for example 250+2*27 Kelvin and it will be interpreted as 304 Kelvin.

About the units:
Kelvin - named after William Thomson, 1st Baron Kelvin (1824-1907). It is defined such that 0 K is the absolute freezing point, and therefore nothing can ever have a temperature lower than 0 K. Kelvin is rarely used in everyday life, but often used within science, and it is the SI unit for temperature.
Celsius - named after Anders Celsius (1701-1744). It is defined such that 0°C is the freezing/melting point of water at standard pressure, and that 100°C is the boiling point of water. Celsius is nowadays the most common temperature scale.
Fahrenheit - named after Daniel Gabriel Fahrenheit (1686–1736). In the Fahrenheit-scale, water boils at 212 degrees and 100 degrees rougly equals the healthy body temperature of humans. Today Fahrenheit is mainly used in the United States.