How to convert degrees Celsius to kelvin
Celsius and Kelvin are different temperature scales, so converting isn't a simple ratio — you apply a formula that accounts for both the scale and the offset between them.
Formula: K = °C + 273.15. For example, 10 °C = 283.15 K.
Celsius to Kelvin conversion table
| Celsius (°C) | Kelvin (K) |
|---|---|
| -40 | 233.15 |
| 0 | 273.15 |
| 10 | 283.15 |
| 20 | 293.15 |
| 25 | 298.15 |
| 30 | 303.15 |
| 37 | 310.15 |
| 100 | 373.15 |
Celsius and Kelvin explained
Celsius (°C): A scale where water freezes at 0° and boils at 100°, used in most of the world.
Kelvin (K): The SI base unit of temperature, starting at absolute zero (0 K = −273.15 °C).
When you'd convert degrees Celsius to kelvin
Switching between Celsius and Kelvin comes up with weather, cooking and science — the US reports temperature in °F while most of the world uses °C, and scientific work uses kelvin. This converter gives the exact value so you never have to estimate.
Frequently asked questions
How many kelvin are in a celsiu?
Temperature isn't a simple ratio — use K = °C + 273.15. For example, 293.15 K corresponds to 20 °C.
What is the formula to convert degrees Celsius to kelvin?
K = °C + 273.15. Apply it directly to your temperature.
What is 2 degrees Celsius in kelvin?
2 °C = 275.15 K. You can enter any value in the converter above to get an instant result.
Is this Celsius to Kelvin converter accurate?
Yes. It uses the standard conversion formula defined by BIPM — SI Brochure (definition of the kelvin), so results are exact to several decimal places.