Convert kelvins to degrees Fahrenheit
Converting kelvins to degrees Fahrenheit is a common temperature task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 K equals -457.87 °F, the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.
Exact factor
How to convert kelvins to degrees Fahrenheit
Apply the formula °F = (K − 273.15) × 9/5 + 32. For example, 10 K equals -441.67 °F.
°F = (K − 273.15) × 9/5 + 32
- Write down the value in kelvins you want to convert.
- Apply the formula: °F = (K − 273.15) × 9/5 + 32.
- The result is your value in degrees Fahrenheit. Verify it with the converter above.
Conversion table
Common values of kelvins and their equivalents in degrees Fahrenheit:
| K | °F |
|---|---|
| 1 | -457.87 |
| 2 | -456.07 |
| 3 | -454.27 |
| 4 | -452.47 |
| 5 | -450.67 |
| 10 | -441.67 |
| 20 | -423.67 |
| 25 | -414.67 |
| 50 | -369.67 |
| 100 | -279.67 |
| 250 | -9.67 |
| 500 | 440.33 |
About these units
Kelvin (K). The kelvin is the SI base unit of temperature, starting at absolute zero (−273.15 °C), the point where thermal motion stops. It is used in physics, chemistry and engineering.
Fahrenheit (°F). The Fahrenheit scale sets water's freezing point at 32° and boiling point at 212°. It is the everyday temperature scale in the United States and a few other countries.
Frequently asked questions
How do I convert kelvins to degrees Fahrenheit?
Apply the formula °F = (K − 273.15) × 9/5 + 32. For example, 10 K equals -441.67 °F. Or skip the math: type the value into the converter at the top of this page and the result updates instantly.
How many degrees Fahrenheit are in 1 kelvin?
1 K = -457.87 °F. That is the fixed relationship used by this converter and by international standards.
How many kelvins are in 1 fahrenheit?
1 °F = 255.928 K. If you are converting in the opposite direction, use our Fahrenheit to Kelvin converter for the dedicated table and FAQ.
Is the kelvins to degrees Fahrenheit conversion exact?
Yes. The formulas between Celsius, Fahrenheit and Kelvin are exact by definition, so results are as precise as you need. Only the displayed digits are rounded for readability.
What is kelvin used for?
The kelvin is the SI base unit of temperature, starting at absolute zero (−273.15 °C), the point where thermal motion stops. It is used in physics, chemistry and engineering.