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Kelvin to Celsius converter
Enter a number, fraction, power, π, or arithmetic expression.1 K = -272.15 °C °C = K − 273.15
Ready for local conversionKelvin to Celsius formula
°C = K − 273.15
Subtract exactly 273.15; one kelvin interval equals one Celsius degree
The kelvin and Celsius scales differ only by their origins: 0 K equals exactly −273.15 °C.
How to convert Kelvin to Degrees Celsius
Subtract exactly 273.15 from the kelvin value. A physically meaningful thermodynamic temperature cannot be below 0 K, although the calculator preserves mathematical input as entered.
Example calculation
A temperature of 310.15 K is exactly 37 °C: 310.15 − 273.15 = 37.
310.15 K = 37 °C
When this conversion is useful
Kelvin to Celsius helps translate scientific datasets, material specifications, laboratory results, and thermal calculations into an everyday metric temperature.
Common Kelvin to Degrees Celsius conversions
| Kelvin (K) | Degrees Celsius (°C) |
|---|---|
| 0 | -273.15 |
| 233.15 | -40 |
| 273.15 | 0 |
| 293.15 | 20 |
| 310.15 | 37 |
| 373.15 | 100 |
Kelvin to Celsius FAQ
Subtract exactly 273.15 from the kelvin temperature.
Absolute zero is 0 K, which equals exactly −273.15 °C.
The two scales use identical interval sizes; only their zero points differ by 273.15.