Temperature scale that is named after the Swedish astronomer Anders Celsius (1701–1744). Also known as centigrade in some countries
The degree Celsius (°C) can refer to a specific temperature on the Celsius scale as well as serve as a unit increment to indicate a temperature interval. From 1744 until 1954, 0 °C on the Celsius scale was defined as the freezing point of water and 100 °C was defined as the boiling point of water under a pressure of one standard atmosphere;
Some key temperatures relating the Celsius scale to other temperature scales are shown in the table below.
| |
Kelvin |
Celsius |
Fahrenheit |
|
Absolute zero
|
0 K |
−273.15 °C |
−459.67 °F |
| Melting point of ice |
273.15 K |
0 °C |
32 °F |
Water's boiling point at 1 atm
(101.325 kPa) |
373.1339 K |
99.9839 °C |
211.9710 °F |
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Celsius temperature conversion formulae
| |
from Celsius |
to Celsius |
| Fahrenheit |
[°F] = [°C] × 9⁄5 + 32 |
[°C] = ([°F] − 32) × 5⁄9 |
| Kelvin |
[K] = [°C] + 273.15 |
[°C] = [K] − 273.15 |
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