| Conversion from | to | Formula |
|---|---|---|
| Kelvins | degrees Celsius | °C = K - 273.15 |
| degrees Celsius | Kelvins | K = °C + 273.15 |
| Kelvins | degrees Fahrenheit | °F = K × 1.8 − 459.67 |
| degrees Fahrenheit | Kelvins | K = (°F + 459.67) / 1.8 |
| Kelvins | electronvolts | K / 11,604.5 = eV |
| electronvolts | Kelvins | eV × 11,604.5 = K |
| Note that for temperature intervals rather than temperature readings, 1 K = 1 °C and 1 K = 1.8 °F Comparisons among various temperature scales Conversion calculator for units of temperature | ||
The kelvin (symbol: K) is the SI (Système International d'Unités) unit of temperature and is one of the seven SI base units. The kelvin is a unit measure of temperature on the thermodynamic (absolute) temperature scale.
Key Temperatures[]
Some key temperatures relating kelvin values to other scales are shown in the below table.
| Point | Kelvin | Celsius | Fahrenheit |
|---|---|---|---|
| Absolute zero (precisely by definition) |
0 K | –273.15 °C | −459.67 °F |
| Water's freezing point | 273.15 K | 0 °C | 32 °F |
| Water’s triple point (precisely by definition) |
273.16 K | 0.01 °C | 32.018 °F |
| Water’s boiling point1 | 373.1339 K | 99.9839 °C | 211.9710 °F |
1 For Vienna Standard Mean Ocean Water at one standard atmosphere (101.325 kPa) when calibrated solely per the two-point definition of thermodynamic temperature.