Kelvins to Celsius (K to °C)
Formula: °C = K − 273.15
How to convert kelvins to degrees Celsius
°C = K − 273.15
Example: 300 − 273.15 = 26.85, so 300 K = 26.85 °C.
Kelvin to Celsius makes scientific values easier to picture: liquid nitrogen boils at 77 K (−196 °C) and the Sun’s surface is about 5,778 K.
Colour temperature of light bulbs is also given in kelvins (2,700 K warm white, 6,500 K daylight), although that is a description of colour rather than heat.
Kelvins to Celsius conversion table
| Kelvins (K) | Celsius (°C) |
|---|---|
| 0 K | -273.15 °C |
| 50 K | -223.15 °C |
| 77 K | -196.15 °C |
| 100 K | -173.15 °C |
| 200 K | -73.15 °C |
| 273.15 K | 0 °C |
| 293.15 K | 20 °C |
| 300 K | 26.85 °C |
| 373.15 K | 100 °C |
| 500 K | 226.85 °C |
| 1,000 K | 726.85 °C |
| 5,778 K | 5,504.85 °C |
What is a kelvin?
The kelvin is the SI base unit of thermodynamic temperature. Its zero point is absolute zero, the lowest possible temperature, and one kelvin step equals one degree Celsius. It is written without a degree sign.
What is a degree Celsius?
On the Celsius scale water freezes at 0 °C and boils at 100 °C at sea-level pressure. It is used for weather, cooking and medicine in nearly every country except the United States.
Frequently asked questions
How do I convert kelvins to degrees Celsius?
Use the formula °C = K − 273.15. 300 − 273.15 = 26.85, so 300 K = 26.85 °C.
What is 5,778 K in °C?
5,778 K = 5,504.85 °C.
How do I convert degrees Celsius back to kelvins?
Use the inverse formula K = °C + 273.15, or open the Celsius to Kelvins converter.
More temperature conversions
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