How to convert kelvins to degrees Celsius
To convert kelvins (K) to degrees Celsius (°C), subtract 273.15.
°C = K − 273.15
Example: 300 K = 26.85 °C.
You can also type 300 K to °C into the smart calculator, or mix units: 1 K + 1 °C.
Kelvins to Degrees Celsius conversion table
| Kelvins | Degrees Celsius |
|---|---|
| 0 K | −273.15 °C |
| 100 K | −173.15 °C |
| 200 K | −73.15 °C |
| 250 K | −23.15 °C |
| 255.37 K | −17.78 °C |
| 273.15 K | 0 °C |
| 283.15 K | 10 °C |
| 293.15 K | 20 °C |
| 298.15 K | 25 °C |
| 300 K | 26.85 °C |
| 310.15 K | 37 °C |
| 373.15 K | 100 °C |
| 400 K | 126.85 °C |
| 500 K | 226.85 °C |
| 1,000 K | 726.85 °C |
Converting degrees Celsius back to kelvins
Use the reverse formula. See the Degrees Celsius to Kelvins converter, or press the swap button above.
About the units
Kelvin (K)
The SI base unit of temperature. Zero kelvin is absolute zero; the step size matches the Celsius degree.
Degree Celsius (°C)
Water freezes at 0 °C and boils at 100 °C at sea level. A step of one degree equals one kelvin.
Temperature scales do not share a zero, so converting between them needs an offset as well as a factor. Water freezes at 0 °C, 32 °F and 273.15 K. A change of one degree Celsius equals a change of one kelvin and 1.8 degrees Fahrenheit.
Questions and answers
What is 0 K in °C?
0 K is −273.15 °C.
What is 100 K in °C?
100 K is −173.15 °C.
How do I convert kelvins to degrees Celsius?
To convert kelvins to degrees Celsius, subtract 273.15. The formula is °C = K − 273.15. For example, 300 K = 26.85 °C.
What is 300 K in °C?
300 kelvins is 26.85 degrees Celsius.
At what temperature are Celsius and Fahrenheit equal?
At −40. −40 °C and −40 °F are the same temperature.
Does this K to °C converter work offline?
Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.