Kelvin to Celsius Converter
Convert K to °C instantly — and see every other temperature unit at once.
1 K=-272.15 °C
1 K in every unit
Celsius
-272.15°C
Fahrenheit
-457.87°F
Kelvinfrom
1K
Rankine
1.8°R
Common Kelvin to Celsius conversions
| Kelvin (K) | Celsius (°C) |
|---|---|
| 0 K | -273.15 °C |
| 73 K | -200.15 °C |
| 173 K | -100.15 °C |
| 273.15 K | 0 °C |
| 298 K | 24.85 °C |
| 310 K | 36.85 °C |
| 373 K | 99.85 °C |
| 500 K | 226.85 °C |
| 1000 K | 726.85 °C |
The formula
Kelvin is the SI base unit of temperature, used in physics and chemistry — it starts at absolute zero.
Celsius is used worldwide for everyday temperature — weather, cooking, and science.
Worked examples
273.15 K→0 °C— Freezing point of water
Apply K − 273.15 with input = 273.15. Result: 0 °C.
373.15 K→100 °C— Boiling point of water
Apply K − 273.15 with input = 373.15. Result: 100 °C.
0 K→-273.15 °C— Absolute zero
Apply K − 273.15 with input = 0. Result: -273.15 °C.
310 K→36.85 °C— Human body temperature
Apply K − 273.15 with input = 310. Result: 36.85 °C.
FAQ
How do I convert Kelvin to Celsius?
Use the formula: °C = K − 273.15. You can also use the converter above — type any value and the result updates instantly.
Where are Kelvin used?
Kelvin is the SI base unit of temperature, used in physics and chemistry — it starts at absolute zero.
Where are Celsius used?
Celsius is used worldwide for everyday temperature — weather, cooking, and science.
How do I convert Celsius back to Kelvin?
Use the Celsius to Kelvin converter.