Kelvin to Celsius Converter
Convert between Kelvin and Celsius temperature scales with this accurate, easy-to-use calculator. See step-by-step calculations and reference points for common temperatures.
K
Absolute zero: 0 K
Water freezes: 273.15 K
Water boils: 373.15 K
°C
Absolute zero: -273.15 °C
Water freezes: 0 °C
Water boils: 100 °C
Conversion Formula
°C = K – 273.15
To convert Kelvin to Celsius, subtract 273.15 from the Kelvin temperature.
Absolute Zero
0 K
-273.15 °C
Theoretical minimum temperature
Water Freezes
273.15 K
0 °C
Freezing point of water
Room Temperature
293.15 K
20 °C
Standard room temperature
Water Boils
373.15 K
100 °C
Boiling point of water
Temperature Comparison
Absolute Zero
Freezing
Room Temp
Boiling
| Scale | Temperature | Key Points |
|---|---|---|
| Kelvin (K) | – | Absolute scale, no negative values |
| Celsius (°C) | – | Water freezes at 0°C, boils at 100°C |
| Difference | – | Constant 273.15 difference |
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