Convert Kelvin to Fahrenheit
K to °F · temperature conversion
What are kelvin and fahrenheit?
Kelvin is the SI base unit of temperature, starting at absolute zero (−273.15 °C) with no negative values. Fahrenheit puts water’s freezing point at 32° and boiling at 212°, and is used mainly in the United States. For reference: a comfortable room is about 21 °C (70 °F), and normal body temperature is 37 °C (98.6 °F).
How to convert kelvin to fahrenheit
Temperature scales don't share a zero point, so you can't convert by a single multiplier — use the formula °F = (K − 273.15) × 9/5 + 32. For example, 0K = -459.67°F, 37K = -393.07°F, and 100K = -279.67°F.
Kelvin to Fahrenheit conversion table
| Kelvin (K) | Fahrenheit (°F) |
|---|---|
| 0 | -459.67 |
| 10 | -441.67 |
| 20 | -423.67 |
| 25 | -414.67 |
| 30 | -405.67 |
| 37 | -393.07 |
| 100 | -279.67 |
FAQ
What is the formula to convert kelvin to fahrenheit?
°F = (K − 273.15) × 9/5 + 32. Temperature scales don't share a zero point, so you convert with this formula rather than a single multiplier.
What is 0 K in °F?
0 K = -459.67 °F, and 100 K = -279.67 °F.
Why can't I just multiply kelvin by a number?
Because Kelvin and Fahrenheit start counting from different zero points, multiplication alone would give the wrong answer — you also have to shift the scale, which the formula above handles.