Fahrenheit to Kelvin
Convert fahrenheit (°F) to kelvin (K) instantly — with formula and reference table.
°F
K
Quick answer: 1 °F = 255.927778 K. To convert fahrenheit to kelvin, apply °F × 0.555556 + 255.372222.
Converting fahrenheit to kelvin
This converter changes a value in fahrenheit (°F) into kelvin (K). One fahrenheit equals 255.927778 K. To convert Fahrenheit to Kelvin, subtract 32, multiply by 5/9, then add 273.15. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
K = °F × 0.555556 + 255.372222
Example
Convert 25 °F to K: 25 × 0.555556 + 255.372222 = 269.261111 K.
Fahrenheit to Kelvin conversion table
| Fahrenheit (°F) | Kelvin (K) |
|---|---|
| 1 °F | 255.927778 K |
| 2 °F | 256.483333 K |
| 3 °F | 257.038889 K |
| 5 °F | 258.15 K |
| 10 °F | 260.927778 K |
| 20 °F | 266.483333 K |
| 25 °F | 269.261111 K |
| 50 °F | 283.15 K |
| 100 °F | 310.927778 K |
How to use this converter
- Enter a value in the fahrenheit (°F) field.
- Read the converted value in kelvin (K) below.
- Type into the K field instead to convert in reverse, or use the swap button.
Frequently asked questions
How do I convert Fahrenheit to Kelvin?
K = (F - 32) times 5/9 + 273.15.
What is 32 Fahrenheit in Kelvin?
32 Fahrenheit equals 273.15 Kelvin, the freezing point of water.
What is room temperature (70 F) in Kelvin?
70 Fahrenheit is about 294.3 Kelvin.