Convert Kelvin to Fahrenheit
1 K = -457.87 °F. Enter any value below.
Converted to every unit
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Kelvin to Fahrenheit formula
°F = (K − 273.15) × 9/5 + 32
Kelvin is the SI temperature unit; 0 K is absolute zero, and a change of 1 K equals a change of 1 °C. The Fahrenheit scale, used in the US, puts water's freezing point at 32 °F and boiling point at 212 °F.
Worked example
Using the formula, 25 K = -414.67 °F.
Kelvin to Fahrenheit conversion table
| Kelvin | Fahrenheit |
|---|---|
| -40 K | -531.67 °F |
| -20 K | -495.67 °F |
| -10 K | -477.67 °F |
| 0 K | -459.67 °F |
| 10 K | -441.67 °F |
| 20 K | -423.67 °F |
| 25 K | -414.67 °F |
| 30 K | -405.67 °F |
| 32 K | -402.07 °F |
| 37 K | -393.07 °F |
| 40 K | -387.67 °F |
| 50 K | -369.67 °F |
| 60 K | -351.67 °F |
| 70 K | -333.67 °F |
| 80 K | -315.67 °F |
| 90 K | -297.67 °F |
| 98.6 K | -282.19 °F |
| 100 K | -279.67 °F |
| 150 K | -189.67 °F |
| 200 K | -99.67 °F |
| 212 K | -78.07 °F |
| 300 K | 80.33 °F |
| 350 K | 170.33 °F |
| 400 K | 260.33 °F |
| 450 K | 350.33 °F |
| 500 K | 440.33 °F |
Frequently asked questions
What is 0 K in Fahrenheit?
0 K equals -459.67 °F.
How do I convert kelvin to fahrenheit?
Use the formula °F = (K − 273.15) × 9/5 + 32. For example, 25 K = -414.67 °F.
Last reviewed: October 2026 · Uses exact, internationally defined conversion factors.