Celsius degree
| Symbol: | °C |
| Category: | Temperature |
| SI Equivalent: | (273.15+1x) K |
| Dimension: | Q |
| System: | INT |
| Notes | |
| This temperature scale was invented by the Swedish astronomer Anders Celsius in 1742. The scale is based on 0° for the freezing point of pure water and 100° for the boiling point, with the interval being divided into 100 parts. The scale is sometimes called the centigrade scale because of the 100-degree interval between the defined points. | |
21 °C =