Convert degrees Fahrenheit to kelvins
Enter a temperature in degrees Fahrenheit to get kelvins. Formula: K = (°F − 32) × 5/9 + 273.15.
How to use the Degree Fahrenheit to kelvin
- Type the number of degrees Fahrenheit.
- Click Convert.
- Read the result in kelvins, plus the same value in every other temperature unit.
°F to K formula
K = (°F − 32) × 5/9 + 273.15
Worked example
77 °F → (77 − 32) × 5/9 + 273.15 = 298.15 K.
Degrees Fahrenheit to kelvins conversion table
| Degrees Fahrenheit | Kelvins |
|---|---|
| -40 °F | 233.15 K |
| 0 °F | 255.3722 K |
| 32 °F | 273.15 K |
| 50 °F | 283.15 K |
| 68 °F | 293.15 K |
| 77 °F | 298.15 K |
| 86 °F | 303.15 K |
| 98.6 °F | 310.15 K |
| 100 °F | 310.9278 K |
| 104 °F | 313.15 K |
| 212 °F | 373.15 K |
| 350 °F | 449.8167 K |
About the degree Fahrenheit
Water freezes at 32 °F and boils at 212 °F. Used for weather, cooking and body temperature in the USA.
About the kelvin
The SI unit; 0 K is absolute zero and one kelvin equals one degree Celsius in size. Used in science and for colour temperature of light.
Related conversions
kelvins to degrees Fahrenheit · degrees Fahrenheit to degrees Celsius · any unit.
Frequently asked questions
How many kelvins in a degree Fahrenheit?
Use K = (°F − 32) × 5/9 + 273.15.
How many degrees Fahrenheit in a kelvin?
Use the inverse: °F = (K − 273.15) × 9/5 + 32.
Is the factor exact?
Yes, the formulas are exact by definition.
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Last updated 2026-09-23.