Convert Kelvin to Celsius
Type the number of kelvin that you wish to convert to celsius.
How to Convert Kelvin to Celsius
The kelvin and celsius are both units of temperature measurement. To convert kelvin to celsius, use the formula °C = K - 273.15.
Formula
Step-by-Step Example
Convert 100 K to celsius:
Formula: °C = K - 273.15
100 - 273.15 = -173.15
100 K = -173.15 °C
Kelvin to Celsius Conversion Table
Quick reference table for common kelvin to celsius conversions. Click any value for detailed calculation.
| Kelvin (K) | Celsius (°C) |
|---|---|
| 0.1 K | -273.05 °C |
| 0.5 K | -272.65 °C |
| 1 K | -272.15 °C |
| 2 K | -271.15 °C |
| 5 K | -268.15 °C |
| 10 K | -263.15 °C |
| 25 K | -248.15 °C |
| 50 K | -223.15 °C |
| 100 K | -173.15 °C |
About These Units
Kelvin (K)
Kelvin (K) is the SI base unit for temperature, used in science and engineering. Absolute zero (0 K) is -273.15°C or -459.67°F—the coldest possible temperature where molecular motion stops. No degree symbol is used with Kelvin. Water freezes at 273.15 K. Named after Lord Kelvin.
Celsius (°C)
Celsius (°C), also called centigrade, is the metric temperature scale used by most countries worldwide. Water freezes at 0°C and boils at 100°C at standard pressure. To convert Celsius to Fahrenheit: °F = (°C × 9/5) + 32. Normal body temperature is 37°C. Named after Swedish astronomer Anders Celsius.
Frequently Asked Questions
How do I convert kelvin to celsius?
Use the formula: °C = K - 273.15. For example, to convert 25 K, apply the formula to get -248.15 °C.
What is the formula for kelvin to celsius?
The formula is: °C = K - 273.15.
What is 0 K in °C?
0 K equals -273.15 °C.