Kelvin to Celsius Calculator
Enter a temperature in Kelvin to convert it to degrees Celsius.
Kelvin to Celsius Formula
To convert Kelvin to Celsius, subtract 273.15 from the Kelvin value.
Formula: °C = K - 273.15
For example, 300 K equals 26.85°C.
This simple shift is possible because Kelvin and Celsius use the same interval size. Only the zero point changes, which makes conversion straightforward once you know the constant offset.
Common Kelvin to Celsius Values
| Kelvin | Celsius |
|---|---|
| 0 K | -273.15°C |
| 273.15 K | 0°C |
| 293.15 K | 20°C |
| 298.15 K | 25°C |
| 373.15 K | 100°C |
Why Convert Kelvin to Celsius?
This conversion helps when reading scientific data and translating it into more familiar temperatures used in daily life, weather, and education.
For the opposite calculation, see our Celsius to Kelvin Converter. You can also compare temperatures on the imperial scale with Kelvin to Fahrenheit.
It is especially practical when a dataset, lab source, or specification sheet uses Kelvin but the result needs to be understood in the more familiar Celsius scale.
Kelvin to Celsius FAQ
What is the formula for Kelvin to Celsius?
The formula is °C = K - 273.15. Subtract 273.15 from the Kelvin value to get Celsius.
What is 273.15 K in Celsius?
273.15 K equals 0°C, which is the freezing point of water under standard conditions.
Why convert Kelvin to Celsius?
This is useful when scientific or technical temperatures need to be expressed in a scale that is easier for everyday interpretation.