Fahrenheit to Kelvin Converter
Needed when US engineering or weather data in °F feeds into scientific calculations.
32 °F = 273.15 K
kelvins
How to convert degrees Fahrenheit to kelvins
Subtract 32, multiply by 5/9, then add 273.15.
Formula
K = (°F − 32) × 5/9 + 273.15
Examples
- 32 °F → (32 − 32) ÷ 1.8 + 273.15 = 273.15 K
- 77 °F → (77 − 32) ÷ 1.8 + 273.15 = 298.15 K
- 212 °F → (212 − 32) ÷ 1.8 + 273.15 = 373.15 K
Degrees Fahrenheit to kelvins conversion table
| Degrees Fahrenheit (°F) | Kelvins (K) |
|---|---|
| −459.67 | 0 |
| −100 | 199.8167 |
| −40 | 233.15 |
| 0 | 255.3722 |
| 32 | 273.15 |
| 50 | 283.15 |
| 68 | 293.15 |
| 77 | 298.15 |
| 98.6 | 310.15 |
| 100 | 310.9278 |
| 212 | 373.15 |
| 500 | 533.15 |
| 1,000 | 810.9278 |
Values rounded to 4 decimal places or 4 significant digits.
About degrees Fahrenheit
On the Fahrenheit scale water freezes at 32 °F and boils at 212 °F, so one Fahrenheit degree is 5/9 of a Celsius degree. It is the everyday scale in the United States for weather, ovens and body temperature.
About kelvins
The kelvin is the SI base unit of temperature. Its scale starts at absolute zero, so there are no negative kelvin values, and a change of 1 K equals a change of 1 °C. It is written without a degree sign.
Frequently asked questions
What is the formula to convert Fahrenheit to Kelvin?
K = (°F − 32) × 5/9 + 273.15. Subtract 32, multiply by 5/9, then add 273.15.
What is 32 °F in Kelvin?
32 °F is 273.15 K.
What is 77 °F in Kelvin?
77 °F is 298.15 K.