Fahrenheit to Kelvin Conversion
Fahrenheit and Kelvin are related by a formula rather than a fixed ratio — see the worked example below.
1 Fahrenheit = 255.9277778 Kelvin
How to convert Fahrenheit to Kelvin
- Celsius to Fahrenheit
°F = °C × 9/5 + 32 - Fahrenheit to Celsius
°C = (°F − 32) × 5/9 - Celsius to Kelvin
K = °C + 273.15 - Fahrenheit to Rankine
°R = °F + 459.67
Example: 10 °F = 260.9277778 K.
Watch out: To convert a temperature change rather than a reading — for example "the oven got 10 degrees hotter" — use the Temperature Interval converter, which has no offset.
Fahrenheit to Kelvin conversion table
| Fahrenheit (°F) | Kelvin (K) |
|---|---|
| -40 | 233.15 |
| -20 | 244.2611111 |
| -10 | 249.8166667 |
| 0 | 255.3722222 |
| 10 | 260.9277778 |
| 20 | 266.4833333 |
| 25 | 269.2611111 |
| 30 | 272.0388889 |
| 37 | 275.9277778 |
| 40 | 277.5944444 |
| 50 | 283.15 |
| 60 | 288.7055556 |
| 80 | 299.8166667 |
| 100 | 310.9277778 |
| 180 | 355.3722222 |
| 200 | 366.4833333 |
Frequently asked questions
What is 1 Fahrenheit in Kelvin?
1 Fahrenheit (°F) is 255.9277778 Kelvin (K).
What is 1 Kelvin in Fahrenheit?
1 Kelvin (K) is -457.87 Fahrenheit (°F).
How do I convert Fahrenheit to Kelvin?
Fahrenheit and Kelvin are not related by a single multiplication factor. The formulas used are: Celsius to Fahrenheit: °F = °C × 9/5 + 32; Fahrenheit to Celsius: °C = (°F − 32) × 5/9; Celsius to Kelvin: K = °C + 273.15; Fahrenheit to Rankine: °R = °F + 459.67. For example, 5 °F is 258.15 K.
How many units does the temperature converter support?
It converts between 4 units: Celsius, Fahrenheit, Kelvin, Rankine.
What should I watch out for when converting temperature?
To convert a temperature change rather than a reading — for example "the oven got 10 degrees hotter" — use the Temperature Interval converter, which has no offset.
More temperature conversions
Full converter
For any other temperature unit, use the full Temperature Converter.