›› SI base quantity: temperature

This category of measurement units is defined by the "temperature" type, which is an SI base quantity.


›› SI unit: kelvin

The SI base unit for temperature is the kelvin.


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›› Definition: Kelvin

The kelvin (symbol: K) is the SI unit of temperature, and is one of the seven SI base units. It is defined by two facts: zero kelvins is absolute zero (when molecular motion stops), and one kelvin is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water. The Celsius temperature scale is now defined in terms of the kelvin, with 0 įC corresponding to 273.15 kelvins, approximately the melting point of water under ordinary conditions.


›› Temperature units

degree Celsius
degree Delisle
degree Fahrenheit
degree newton
degree Rankine
degree Rťaumur
degree RÝmer
kelvin