Temperature conversion
42 °C to K
315.15 K
42 degrees Celsius = 315.15 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: 42 + 273.15 = 315.15 K.
Values near 42 °C
| °C | K |
|---|---|
| 41.7 | 314.85 |
| 41.8 | 314.95 |
| 41.9 | 315.05 |
| 42this page | 315.15 |
| 43 | 316.15 |
| 44 | 317.15 |
| 45 | 318.15 |
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 42 °C in K?
42 °C equals 315.15 K. The reference table below shows the values immediately around 42 °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.