Degrees Fahrenheit to Kelvin
Convert degrees Fahrenheit to kelvin instantly. See the exact formula, a worked example and a quick reference chart — free, no sign-up.
To convert degrees Fahrenheit to kelvin, use K = (°F − 32) × 5/9 + 273.15. For example, 100°F = 310.9278K. Enter any value in the converter above to do it instantly.
Why convert degrees Fahrenheit to kelvin?
Degrees Fahrenheit (°F) and kelvin (K) are two different temperature scales, so converting between them needs a formula rather than a single multiplier. The tool above does it instantly; below is the exact formula, a worked example and a reference chart you can scan.
Degrees Fahrenheit to kelvin formula
K = (°F − 32) × 5/9 + 273.15
Worked example: 100 degrees Fahrenheit = 310.9278 kelvin.
Degrees Fahrenheit to kelvin conversion table
| Degrees Fahrenheit (°F) | Kelvin (K) |
|---|---|
| -40 | 233.15 |
| 0 | 255.3722 |
| 32 | 273.15 |
| 50 | 283.15 |
| 68 | 293.15 |
| 98.6 | 310.15 |
| 212 | 373.15 |
Degrees Fahrenheit to Kelvin — frequently asked questions
What is the formula to convert degrees Fahrenheit to kelvin?
Use K = (°F − 32) × 5/9 + 273.15. For example, 100°F = 310.9278K.
What is 100°F in K?
100°F = 310.9278K. Enter any value in the converter above for an instant result.
How do I convert kelvin back to degrees Fahrenheit?
Do the reverse conversion — see our kelvin-to-degrees Fahrenheit converter for the formula and an instant calculator.
Is this degrees Fahrenheit-to-kelvin converter free?
Yes — it's completely free, instant and runs in your browser with no sign-up. Nothing you type is uploaded.