How to convert degrees Fahrenheit to kelvin
Fahrenheit and Kelvin are different temperature scales, so converting isn't a simple ratio — you apply a formula that accounts for both the scale and the offset between them.
Formula: K = (°F − 32) × 5/9 + 273.15. For example, 10 °F = 260.927778 K.
Fahrenheit to Kelvin conversion table
| Fahrenheit (°F) | Kelvin (K) |
|---|---|
| -40 | 233.15 |
| 0 | 255.372222 |
| 10 | 260.927778 |
| 20 | 266.483333 |
| 25 | 269.261111 |
| 30 | 272.038889 |
| 37 | 275.927778 |
| 100 | 310.927778 |
Fahrenheit and Kelvin explained
Fahrenheit (°F): A scale where water freezes at 32° and boils at 212°, used mainly in the US.
Kelvin (K): The SI base unit of temperature, starting at absolute zero (0 K = −273.15 °C).
When you'd convert degrees Fahrenheit to kelvin
Switching between Fahrenheit and Kelvin comes up with weather, cooking and science — the US reports temperature in °F while most of the world uses °C, and scientific work uses kelvin. This converter gives the exact value so you never have to estimate.
Frequently asked questions
How many kelvin are in a fahrenheit?
Temperature isn't a simple ratio — use K = (°F − 32) × 5/9 + 273.15. For example, 266.483333 K corresponds to 20 °F.
What is the formula to convert degrees Fahrenheit to kelvin?
K = (°F − 32) × 5/9 + 273.15. Apply it directly to your temperature.
What is 2 degrees Fahrenheit in kelvin?
2 °F = 256.483333 K. You can enter any value in the converter above to get an instant result.
Is this Fahrenheit to Kelvin converter accurate?
Yes. It uses the standard conversion formula defined by BIPM — SI Brochure (definition of the kelvin), so results are exact to several decimal places.