Temperature conversion
15 °C to K
288.15 K
15 degrees Celsius = 288.15 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: 15 + 273.15 = 288.15 K.
Values near 15 °C
| °C | K |
|---|---|
| 12 | 285.15 |
| 13 | 286.15 |
| 14 | 287.15 |
| 15this page | 288.15 |
| 16 | 289.15 |
| 17 | 290.15 |
| 18 | 291.15 |
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 15 °C in K?
15 °C equals 288.15 K. The reference table below shows the values immediately around 15 °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.