°Cv2rev 12026-03-17ISO 80000-5:2019; 5-2
degree Celsius
0112/2///62720#UAA033
unit of the temperature of which the scale is defined by two fixe-points, the temperatures of freezing point (0 °C) and boiling point (100 °C) of water at normal pressure (air pressure of 1 013,25 hPa). The unit degree Celsius is by definition equal in magnitude to the kelvin.
unitVersion history4#
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Metadata#
- Note
- For the numerical value of a Celsius temperature and the accordant thermodynamic temperature the following relation is valid: - for absolute temerature: {δ}Grad Celsius = {T}Kelvin - 273,15 - for temperature difference: {Δδ}Grad Celsius = {ΔT}Kelvin
- Source document
- ISO 80000-5:2019; 5-2
- Version
- 2
- Revision
- 1
- Status
- Standard
- Publisher
- IEC
- Published in
- IEC 62720
- Responsible committee
- IEC/SC 3D
- Change request
C00192- Dates
- Current version: 2026-03-17
- Current revision: 2026-03-17