1.1 SI base units
1.1.1 Special name and symbol of the SI derived unit of temperature for expressing Celsius temperature
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A revised version of this publication entered into force. |
Quantity |
Unit |
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Name |
Symbol |
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Celsius temperature |
degree Celsius |
°C |
Celsius temperature t is defined as the difference t = T-T0 between the two thermodynamic temperatures T and T0 where T0 = 273.15 K. An interval of or difference in temperature may be expressed either in kelvins or in degrees Celsius. The unit of "degree Celsius" is equal to the unit "kelvin".