Degrees Fahrenheit to Kelvin Converter
Convert degrees Fahrenheit to kelvin instantly with the exact formula: K = (°F + 459.67) × 5/9. Type a temperature above and the result updates while you type.
Result
K
Result updates as you type. Values are calculated locally in your browser — nothing is sent to a server.
The formula
K = (°F + 459.67) × 5/9
Degrees Fahrenheit to kelvin conversion table
| °F | K |
|---|---|
| -40 | 233.15 |
| -30 | 238.706 |
| -20 | 244.261 |
| -10 | 249.817 |
| 0 | 255.372 |
| 5 | 258.15 |
| 10 | 260.928 |
| 15 | 263.706 |
| 20 | 266.483 |
| 25 | 269.261 |
| 30 | 272.039 |
| 37 | 275.928 |
| 40 | 277.594 |
| 50 | 283.15 |
| 75 | 297.039 |
| 100 | 310.928 |
Worked examples
- 10 °F = 260.928 K
- 25 °F = 269.261 K
- 37 °F = 275.928 K
Conversion factors follow the exact international definitions (SI/BIPM; imperial units per the 1959 International Yard and Pound Agreement, maintained by NIST). NIST unit conversion reference
Factors last verified August 2026 · Built by Jeffrey Tepper.
Frequently asked questions
How many kelvin are in 1 degree Fahrenheit?
1 degree Fahrenheit equals 255.928 kelvin (°F → K).
How do you convert degrees Fahrenheit to kelvin?
Use the formula K = (°F + 459.67) × 5/9. For example: 25 °F equals 269.261 K.
What is 37 °F in K?
37 °F equals 275.928 K.