Celsius to Kelvin
Convert Celsius (°C) to Kelvin (K) instantly, with a formula, reference table, and FAQ.
Formula
Kelvin = (Celsius × 1) + 273.15
Celsius (°C) and Kelvin (K) are both units of temperature. Use the converter above for any value, or check the quick-reference table below for common amounts.
Quick reference
| °C | K |
|---|---|
| 1 °C | 274.15 K |
| 5 °C | 278.15 K |
| 10 °C | 283.15 K |
| 25 °C | 298.15 K |
| 50 °C | 323.15 K |
| 100 °C | 373.15 K |
| 500 °C | 773.15 K |
| 1000 °C | 1,273.15 K |
Frequently asked questions
How many Kelvin is one Celsius?
One Celsius (°C) equals 274.15 Kelvin (K).
How do I convert Celsius to Kelvin?
Multiply the value in Celsius by 1, then add 273.15, to get Kelvin.
Is the Celsius to Kelvin conversion exact?
Yes — this converter uses the internationally defined conversion factor between celsius and kelvin, accurate to several decimal places.