🌡️ Temperature converter
Celsius to Kelvin Converter
Convert celsius (°C) to kelvin (K) instantly. Includes formula, worked example, and a full reference chart from 1 to 1000 °C.
Celsius
°C
Kelvin
K
How to convert celsius to kelvin
To convert Celsius to Kelvin, simply add 273.15 to the Celsius value. The Kelvin scale starts at absolute zero (−273.15 °C), so 0 °C equals 273.15 K.
Formula
K = °C + 273.15
Worked example
Convert 25 °C to K:
25 °C 298.15 K
25 °C 298.15 K
Common celsius to kelvin values
Quick reference for common degree Celsius values:
- 1 °C = 274.15 K
- 5 °C = 278.15 K
- 10 °C = 283.15 K
- 100 °C = 373.15 K
Celsius to Kelvin conversion table
Full reference chart — useful for cooking, fitness, engineering, or homework.
| Celsius | Kelvin |
|---|---|
| 1 °C | 274.15 K |
| 2 °C | 275.15 K |
| 3 °C | 276.15 K |
| 5 °C | 278.15 K |
| 10 °C | 283.15 K |
| 20 °C | 293.15 K |
| 25 °C | 298.15 K |
| 50 °C | 323.15 K |
| 75 °C | 348.15 K |
| 100 °C | 373.15 K |
| 250 °C | 523.15 K |
| 500 °C | 773.15 K |
| 1000 °C | 1,273.15 K |
Kelvin to Celsius table (reverse)
Looking the other way? Here's the reverse conversion:
| Kelvin | Celsius |
|---|---|
| 1 K | -272.15 °C |
| 2 K | -271.15 °C |
| 3 K | -270.15 °C |
| 5 K | -268.15 °C |
| 10 K | -263.15 °C |
| 20 K | -253.15 °C |
| 25 K | -248.15 °C |
| 50 K | -223.15 °C |
| 75 K | -198.15 °C |
| 100 K | -173.15 °C |
| 250 K | -23.15 °C |
| 500 K | 226.85 °C |
| 1000 K | 726.85 °C |
Frequently asked questions
How many kelvin are in 1 degree Celsius?
There are 274.15 K in 1 °C.
How many kelvin are in 10 celsius?
10 °C = 283.15 K.
How many celsius are in 1 kelvin?
1 K = -272.15 °C.
What is the formula to convert celsius to kelvin?
The formula is K = °C + 273.15.