Kelvin to Fahrenheit formula
°F = (K − 273.15) × 9/5 + 32
Convert to Celsius first, then apply the Fahrenheit formula. Temperature scales need an offset as well as a multiplier, which is why they cannot be converted with a single ratio the way length or weight can. To go the other way, use the fahrenheit to kelvin converter.
Kelvin to Fahrenheit conversion table
Common kelvin to fahrenheit values, rounded for reading. The converter above keeps full precision.
| Kelvin | Fahrenheit |
|---|---|
| -40 K | -531.67 °F |
| -20 K | -495.67 °F |
| -10 K | -477.67 °F |
| 0 K | -459.67 °F |
| 5 K | -450.67 °F |
| 10 K | -441.67 °F |
| 15 K | -432.67 °F |
| 20 K | -423.67 °F |
| 25 K | -414.67 °F |
| 30 K | -405.67 °F |
| 37 K | -393.07 °F |
| 40 K | -387.67 °F |
| 50 K | -369.67 °F |
| 75 K | -324.67 °F |
| 100 K | -279.67 °F |
Worked example
To convert 10 K to fahrenheit, apply the formula above: the result is -441.67 °F. Temperature scales require an offset as well as a multiplier. Kelvin values below absolute zero are mathematically convertible but not physically meaningful.
Frequently asked questions
How do you convert Kelvin to Fahrenheit?
Convert to Celsius first, then apply the Fahrenheit formula. The formula is °F = (K − 273.15) × 9/5 + 32.
What is 10 K in °F?
10 K equals -441.67 °F. Enter any other reading in the converter above to see it recalculated instantly.
How do I convert Fahrenheit back to Kelvin?
Reverse the formula, swap the units in the converter, or open the fahrenheit to kelvin page.
Related temperature conversions
Need a different pair? Open the full temperature converter to choose any two units.