Kelvin to Degree Celsius Converter
0 K is -273.15 °C. Convert kelvins (K) to degrees Celsius (°C) below: type a value and the result updates as you type.
K to °C calculator
Result
Kelvin to Degree Celsius conversion
1 K = -272.15 °Cone kelvin in degrees Celsius
1 °C = 274.15 Kone degree Celsius in kelvins
Kelvin (K): SI base unit of thermodynamic temperature, defined by fixing the Boltzmann constant k = 1.380649e-23 J/K.
Degree Celsius (°C): Same size as the kelvin; 0 °C is exactly 273.15 K.
Source:SI Brochure, 9th edition (BIPM, 2019)
How to convert kelvins to degrees Celsius
To convert kelvins to degrees Celsius, subtract 273.15.
Formula
°C = K − 273.15
Examples
- 0 K = 0 − 273.15 = -273.15 °C
- 273.15 K = 273.15 − 273.15 = 0 °C
- 300 K = 300 − 273.15 = 26.85 °C
Kelvin to Degree Celsius conversion table
| Kelvin (K) | Degree Celsius (°C) |
|---|---|
| 0 K | -273.15 °C |
| 200 K | -73.15 °C |
| 250 K | -23.15 °C |
| 273.15 K | 0 °C |
| 293.15 K | 20 °C |
| 298.15 K | 25 °C |
| 300 K | 26.85 °C |
| 310.15 K | 37 °C |
| 350 K | 76.85 °C |
| 373.15 K | 100 °C |
| 400 K | 126.85 °C |
| 500 K | 226.85 °C |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- What is 0 K in °C?
- 0 K is -273.15 °C. To convert kelvins to degrees Celsius, subtract 273.15.
- How do I convert degrees Celsius to kelvins?
- To convert degrees Celsius to kelvins, add 273.15. The formula is K = °C + 273.15.
- Is this conversion exact?
- Yes. Both units have exact definitions and the factor 1 is exact. Displayed results are only rounded when they have many decimal places.