8 units · base unit K · Θ
Temperature converter
Temperature is the odd one out: the scales have different zero points, so you cannot convert by multiplying alone. Every conversion here goes through kelvin using an exact affine transform.
Common temperature conversions
All temperature units
Each unit expressed in kelvins (K), the unit everything in this category converts through.
| Unit | Symbol | System | Value in K |
|---|---|---|---|
| Kelvin | K | SI | 1 |
| Celsius | °C | metric | — |
| Fahrenheit | °F | us | — |
| Rankine | °R | us | 0.555555555556 |
| Réaumur | °Ré | historic | — |
| Delisle | °De | historic | — |
| Newton scale | °N | historic | — |
| Rømer | °Rø | historic | — |
About temperature units
Convert Celsius, Fahrenheit, Kelvin, Rankine and historic temperature scales.
Temperature is the odd one out: the scales have different zero points, so you cannot convert by multiplying alone. Every conversion here goes through kelvin using an exact affine transform.
Dimensional formula: Θ. Every conversion on this page goes through the kelvin, using exact fractions rather than decimal approximations. Read how that works →