TemperatureDegrees Fahrenheit to kelvin
K = (°F − 32) × 5/9 + 273.15.
K = (°F − 32) × 5/9 + 273.15.
Common values
| °F | K |
|---|---|
| 32 °F | 273.15 K |
| 68 °F | 293.15 K |
| 98.6 °F | 310.15 K |
| 212 °F | 373.15 K |
How it works
How to convert degrees Fahrenheit to kelvin
K = (°F − 32) × 5/9 + 273.15.
About degrees Fahrenheit and kelvin
On the Fahrenheit scale water freezes at 32 °F and boils at 212 °F, a 180-degree gap. The kelvin starts at absolute zero; 0 K is −273.15 °C, and one kelvin step equals one Celsius degree.
When you'd convert degrees Fahrenheit to kelvin
Mostly needed in physics and engineering problems set in US units. Convert to Celsius first, then add 273.15.
Common mistake: temperature scales have different zero points, so you cannot just multiply; a change of 1 °C is a change of 1.8 °F, but 1 °C is not 1.8 °F.
To go the other way, use the kelvin to degrees Fahrenheit converter.
The converter on this page works out the answer in your browser as you type, and shows the factor so you can check it by hand.
Questions
What is the formula for fahrenheit to kelvin?
K = (°F − 32) × 5/9 + 273.15
What does the Converter : Units app add?
The same formula, plus the other unit categories, history, and a constants reference.