Temperature conversion
1 °C to K
274.15 K
1 degrees Celsius = 274.15 kelvin. Exact factor: K = °C + 273.15.
Live converter
Edit either field — the other updates instantly. Type decimal values like 38.4.
The formula
K = °C + 273.15
Worked example: 1 + 273.15 = 274.15 K.
Values near 1 °C
| °C | K |
|---|---|
| -2 | 271.15 |
| -1 | 272.15 |
| 0 | 273.15 |
| 1this page | 274.15 |
| 2 | 275.15 |
| 3 | 276.15 |
| 4 | 277.15 |
Frequently asked
How do you convert degrees Celsius to kelvin?
Apply the formula K = °C + 273.15. Enter any value in the live converter above and the result updates as you type.
What is 1 °C in K?
1 °C equals 274.15 K. The reference table below shows the values immediately around 1 °C.
Why does temperature conversion add 32?
The two scales have different zero points and step sizes. Water freezes at 32 °F but 0 °C, so the formula rescales by 5/9 and shifts by the 32-degree offset.