How to use Fahrenheit to Kelvin
- Type a value in Fahrenheit.
- The result in Kelvin appears instantly.
- Type in the second box to convert the other way.
How to convert Fahrenheit to Kelvin
Use the formula K = (°F − 32) × 5/9 + 273.15. Example: 25 °F = 269.2611 K.
Common Fahrenheit to Kelvin conversions
-10 °F = 249.8167 K. 0 °F = 255.3722 K. 37 °F = 275.9278 K. 100 °F = 310.9278 K.
Where is °F to K conversion used?
Temperature conversions matter for weather forecasts when travelling, oven settings in recipes, body temperature and fever checks, aquarium and pool care, and science or lab work.
What are Fahrenheit?
Fahrenheit is used mainly in the United States. Water freezes at 32 °F and boils at 212 °F. Normal body temperature is about 98.6 °F.
What are Kelvin?
Kelvin is the SI temperature scale used in science. 0 K is absolute zero, and one kelvin step equals one degree Celsius.
Fahrenheit to Kelvin conversion table
| Fahrenheit (°F) | Kelvin (K) |
|---|---|
| -40 | 233.15 |
| -20 | 244.2611 |
| -10 | 249.8167 |
| 0 | 255.3722 |
| 5 | 258.15 |
| 10 | 260.9278 |
| 15 | 263.7056 |
| 20 | 266.4833 |
| 25 | 269.2611 |
| 30 | 272.0389 |
| 35 | 274.8167 |
| 37 | 275.9278 |
| 40 | 277.5944 |
| 50 | 283.15 |
| 60 | 288.7056 |
| 80 | 299.8167 |
| 100 | 310.9278 |
Frequently asked questions
What is 25 °F in Kelvin?
25 °F = 269.2611 K.
What is 0 °F in Kelvin?
0 °F = 255.3722 K.
What is 100 °F in Kelvin?
100 °F = 310.9278 K.
What is the formula for Fahrenheit to Kelvin?
K = (°F − 32) × 5/9 + 273.15.
Is the °F to K conversion exact?
Yes. Temperature formulas are exact; results are rounded only for display. Note that temperature scales have different zero points, so you cannot convert by multiplying alone.
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