Absolute zero, freezing, boiling and the body reference on all four scales, with every non-Celsius figure calculated by formula.
| Fixed point | What it is | Celsius (source) | Fahrenheit | Kelvin | Rankine |
|---|---|---|---|---|---|
| Absolute zero | the zero of the kelvin and Rankine scales | -273.15 C | -459.67 F | 0 K | 0 R |
| Water freezes (1 atm) | the conventional zero of the Celsius scale | 0 C | 32 F | 273.15 K | 491.67 R |
| Water boils (1 atm) | the conventional 100 degree point of the Celsius scale | 100 C | 212 F | 373.15 K | 671.67 R |
| Human body reference | the figure used in physiology and medicine | 37 C | 98.6 F | 310.15 K | 558.27 R |
Temperature scale fixed points in Celsius, Fahrenheit, Kelvin and Rankine by UnitGlide, reusable under CC BY 4.0.