How to convert degrees Celsius to kelvin
The two scales have different zero points, so you need a formula rather than a single factor:
K = °C + 273.15
Examples
- 0 + 273.15 = 273.15 K
- 25 + 273.15 = 298.15 K
- 100 + 273.15 = 373.15 K
°C to K conversion table
| Degrees Celsius (°C) | Kelvin (K) |
|---|---|
| −40 °C | 233.15 K |
| −20 °C | 253.15 K |
| −10 °C | 263.15 K |
| 0 °C | 273.15 K |
| 10 °C | 283.15 K |
| 20 °C | 293.15 K |
| 25 °C | 298.15 K |
| 30 °C | 303.15 K |
| 35 °C | 308.15 K |
| 36.6 °C | 309.75 K |
| 37 °C | 310.15 K |
| 38 °C | 311.15 K |
| 40 °C | 313.15 K |
| 50 °C | 323.15 K |
| 60 °C | 333.15 K |
| 80 °C | 353.15 K |
| 100 °C | 373.15 K |
| 150 °C | 423.15 K |
| 180 °C | 453.15 K |
| 200 °C | 473.15 K |
| 250 °C | 523.15 K |
What is a degree Celsius?
The Celsius scale sets water's freezing point at 0 °C and boiling point at 100 °C at sea level. It is used in India and most of the world.
What is a kelvin?
The kelvin is the SI unit of temperature. It starts at absolute zero (0 K = −273.15 °C) and uses the same step size as Celsius.
Related conversions
Kelvin to degrees CelsiusDegrees Celsius to degrees FahrenheitDegrees Fahrenheit to degrees CelsiusDegrees Fahrenheit to kelvinKelvin to degrees FahrenheitAll temperature units
Frequently asked questions
How do I convert degrees Celsius to kelvin?
Use the formula K = °C + 273.15.
What is 25 °C in K?
25 °C = 298.15 K.
What is 100 °C in K?
100 °C = 373.15 K.