Convert Fahrenheit to Kelvins
30 °F = 272.0389 K
K = (°F − 32) × 5/9 + 273.15Convert Fahrenheit to kelvins instantly — type in either box and it works both ways.
How to convert Fahrenheit to kelvins
To convert degrees Fahrenheit to kelvins, subtract 32, multiply by 5/9, then add 273.15.
K = (°F − 32) × 5/9 + 273.15
Example: convert 30 °F to K
- (30 − 32) × 5/9 + 273.15 = 272.0389
- 30 °F = 272.0389 K
Fahrenheit to Kelvins conversion chart
| Degrees Fahrenheit (°F) | Kelvins (K) |
|---|---|
| -40 °F | 233.15 K |
| -20 °F | 244.2611 K |
| -10 °F | 249.8167 K |
| 0 °F | 255.3722 K |
| 10 °F | 260.9278 K |
| 20 °F | 266.4833 K |
| 25 °F | 269.2611 K |
| 30 °F | 272.0389 K |
| 37 °F | 275.9278 K |
| 40 °F | 277.5944 K |
| 50 °F | 283.15 K |
| 100 °F | 310.9278 K |
| 150 °F | 338.7056 K |
| 180 °F | 355.3722 K |
| 200 °F | 366.4833 K |
Frequently asked questions
How do you convert Fahrenheit to kelvins?
To convert degrees Fahrenheit to kelvins, subtract 32, multiply by 5/9, then add 273.15. The formula is K = (°F − 32) × 5/9 + 273.15.
How many kelvins are in one Fahrenheit?
1 °F = 255.9278 K.
How do I convert kelvins back to degrees Fahrenheit?
Use the reverse formula: °F = (K − 273.15) × 9/5 + 32. For example 1 K = -457.87 °F.
At what temperature are Celsius and Fahrenheit equal?
−40 °C is exactly −40 °F. It is the only temperature where both scales show the same number.
Is this converter free and accurate?
Yes. It is free, uses exact internationally defined conversion factors, and runs in your browser — nothing you type is sent anywhere.
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