Convert K to °F instantly — formula, worked examples and a conversion table of common values.
Convert kelvin (K) to fahrenheit (°F). Enter a value on either side and the other updates instantly — nothing is sent to a server.
One kelvin equals -457.87 °F. The table below lists the values people look up most often, and each one links to a page with the worked calculation.
°F = (K − 273.15) × 9/5 + 32| Kelvin (K) | Fahrenheit (°F) |
|---|---|
| -40 | -531.67 |
| -20 | -495.67 |
| -10 | -477.67 |
| 0 | -459.67 |
| 10 | -441.67 |
| 20 | -423.67 |
| 25 | -414.67 |
| 30 | -405.67 |
| 37 | -393.07 |
| 40 | -387.67 |
| 100 | -279.67 |
| 180 | -135.67 |
| 200 | -99.67 |
1 kelvin = -457.87 °F.
300 K = 80.33 °F.
0 K = -459.67 °F.
Use the formula °F = (K − 273.15) × 9/5 + 32. Or type any value into the converter above — it works in both directions.