EngiRef / Temperature conversion
Convert Kelvin to Degrees Fahrenheit (K to °F)
°F = K × 1.8 - 459.67. Convert Kelvin to degrees Fahrenheit with the exact formula, a common-values table and a free converter.
Conversion formula
°F = K × 1.8 - 459.67
Temperature scales set their zero in different places, so this is an offset conversion, not a ratio. There is no single number you can multiply by: K 0 is -459.67 °F, and doubling the input does not double the result. Apply the multiplier, then the offset, in that order.
K to °F table
| Kelvin (K) | Degrees Fahrenheit (°F) |
|---|---|
| 0 K | -459.67 °F |
| 1 K | -457.87 °F |
| 2 K | -456.07 °F |
| 5 K | -450.67 °F |
| 10 K | -441.67 °F |
| 20 K | -423.67 °F |
| 50 K | -369.67 °F |
| 100 K | -279.67 °F |
Every figure is computed at build time by the site’s own converter from the temperature unit registry. For a value that is not listed, put it into the interactive converter.
Frequently asked questions
What is 1 K in °F?
1 K is -457.87 °F. Because temperature scales are offset rather than proportional, this figure is not a multiplier: 100 K is -279.67 °F, not 100 times -457.87.
What is the formula to convert Kelvin to degrees Fahrenheit?
°F = K × 1.8 - 459.67. Apply the multiplier first, then the offset. Every value in the table on this page is computed with that formula by the same converter the tool below runs.
How do I convert degrees Fahrenheit back to Kelvin?
Use the inverse formula, K = °F × 0.555555556 + 255.372222. The °F to K page carries the same table in that direction.