How to convert Fahrenheit to Kelvin
Temperature scales have different zero points, so you cannot simply multiply. Use this formula:
Worked example: 37 °F to K
- Start with the value: 37 °F
- Apply the formula above.
- Result: 37 °F = 275.928 K
Fahrenheit to Kelvin conversion table
Quick reference values, rounded to 6 significant digits.
| Fahrenheit (°F) | Kelvin (K) |
|---|---|
| -40 °F | 233.15 K |
| -20 °F | 244.261 K |
| -10 °F | 249.817 K |
| 0 °F | 255.372 K |
| 10 °F | 260.928 K |
| 20 °F | 266.483 K |
| 25 °F | 269.261 K |
| 30 °F | 272.039 K |
| 35 °F | 274.817 K |
| 36.6 °F | 275.706 K |
| 37 °F | 275.928 K |
| 38 °F | 276.483 K |
| 40 °F | 277.594 K |
| 50 °F | 283.15 K |
| 60 °F | 288.706 K |
| 80 °F | 299.817 K |
| 100 °F | 310.928 K |
| 150 °F | 338.706 K |
| 200 °F | 366.483 K |
Kelvin to Fahrenheit
| K | °F |
|---|---|
| 0 K | -459.67 °F |
| 25 K | -414.67 °F |
| 50 K | -369.67 °F |
| 75 K | -324.67 °F |
| 100 K | -279.67 °F |
1 Fahrenheit in other temperature units
About Fahrenheit and Kelvin
What is a fahrenheit (°F)?
On the Fahrenheit scale water freezes at 32 °F and boils at 212 °F. It is used in the US and on many medical thermometers (normal body temperature is 98.6 °F).
What is a kelvin (K)?
Kelvin is the SI unit of temperature. It starts at absolute zero (0 K = −273.15 °C) and is used in physics and chemistry.
Quick mental trick: to estimate °F from °C, double the Celsius value and add 30 (e.g. 30 °C ≈ 90 °F). Normal body temperature is 37 °C (98.6 °F); a fever starts around 38 °C (100.4 °F).
Where fahrenheit to kelvin conversion is used
Temperature conversions are needed for weather reports, cooking and baking, body temperature, science labs and air-conditioner settings. Converting between Fahrenheit and Kelvin is especially common when you compare products, read foreign specifications, or fill in forms that expect a specific unit.
Need every unit at once? Use the full Temperature Converter.
Frequently asked questions
How many Kelvin are in 1 fahrenheit?
1 Fahrenheit equals 255.928 K.
How do I convert Fahrenheit to Kelvin?
Use the formula K = (°F − 32) × 5/9 + 273.15. For example, 37 °F = 275.928 K.
What is 37 °F in K?
37 °F = 275.928 K.
How many Fahrenheit are in 1 kelvin?
1 Kelvin equals -457.87 °F. Use the Kelvin to Fahrenheit converter for the reverse direction.
Is this Fahrenheit to Kelvin converter accurate?
Yes. It uses exact internationally defined conversion factors, calculated with full floating-point precision. Results are displayed rounded for readability.