Fahrenheit to Kelvin
K = (F - 32) * 5/9 + 273.15
Converter Calculator
1 Fahrenheit (°F) = 255.927778 Kelvin (K)
Explanation
Use the exact affine transform: subtract 32, multiply by 5/9, then add 273.15.
Common Conversion Values
| Fahrenheit (°F) | Kelvin (K) |
|---|---|
| -40 | 233.15 |
| -20 | 244.261111 |
| 0 | 255.372222 |
| 20 | 266.483333 |
| 32 | 273.15 |
| 37 | 275.927778 |
| 50 | 283.15 |
| 100 | 310.927778 |
| 212 | 373.15 |
How to use this hub
- Choose a converter family.
- If converting to/from grams from a volume unit, select an ingredient.
- For pure unit changes (volume↔volume or weight↔weight), use universal conversions.
If your conversion includes grams, you’ll choose an ingredient; otherwise you won’t.
Frequently Asked Questions
What formula does this page use?
This page uses the exact formula: K = (F - 32) * 5/9 + 273.15.
How do I switch to the reverse conversion?
Use Switch Units to open the mirror page. The current input value is carried into that page.
Can I enter negative values?
Yes. Negative inputs are supported for Celsius and Fahrenheit scenarios and to inspect the formula output directly.