How to convert degrees Fahrenheit to kelvins
To convert degrees Fahrenheit (°F) to kelvins (K), add 459.67, then multiply by 5/9.
K = (°F + 459.67) × 5/9
Example: 100 °F = 310.9277778 K.
You can also type 100 °F to K into the smart calculator, or mix units: 1 °F + 1 K.
Degrees Fahrenheit to Kelvins conversion table
| Degrees Fahrenheit | Kelvins |
|---|---|
| −40 °F | 233.15 K |
| −20 °F | 244.26111 K |
| 0 °F | 255.37222 K |
| 10 °F | 260.92778 K |
| 20 °F | 266.48333 K |
| 32 °F | 273.15 K |
| 40 °F | 277.59444 K |
| 50 °F | 283.15 K |
| 60 °F | 288.70556 K |
| 68 °F | 293.15 K |
| 70 °F | 294.26111 K |
| 75 °F | 297.03889 K |
| 80 °F | 299.81667 K |
| 90 °F | 305.37222 K |
| 98.6 °F | 310.15 K |
| 100 °F | 310.92778 K |
| 110 °F | 316.48333 K |
| 150 °F | 338.70556 K |
| 200 °F | 366.48333 K |
| 212 °F | 373.15 K |
| 300 °F | 422.03889 K |
| 350 °F | 449.81667 K |
| 375 °F | 463.70556 K |
| 400 °F | 477.59444 K |
| 450 °F | 505.37222 K |
Converting kelvins back to degrees Fahrenheit
Use the reverse formula. See the Kelvins to Degrees Fahrenheit converter, or press the swap button above.
About the units
Degree Fahrenheit (°F)
Water freezes at 32 °F and boils at 212 °F at sea level. Used for everyday temperatures in the US.
Kelvin (K)
The SI base unit of temperature. Zero kelvin is absolute zero; the step size matches the Celsius degree.
Temperature scales do not share a zero, so converting between them needs an offset as well as a factor. Water freezes at 0 °C, 32 °F and 273.15 K. A change of one degree Celsius equals a change of one kelvin and 1.8 degrees Fahrenheit.
Questions and answers
What is 0 °F in K?
0 °F is 255.3722222 K.
What is 100 °F in K?
100 °F is 310.9277778 K.
How do I convert degrees Fahrenheit to kelvins?
To convert degrees Fahrenheit to kelvins, add 459.67, then multiply by 5/9. The formula is K = (°F + 459.67) × 5/9. For example, 100 °F = 310.92778 K.
What is 100 °F in K?
100 degrees Fahrenheit is 310.9277778 kelvins.
At what temperature are Celsius and Fahrenheit equal?
At −40. −40 °C and −40 °F are the same temperature.
Does this °F to K converter work offline?
Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.