Kelvin to Fahrenheit ConverterRight in Your Browser
Convert kelvins (K) to degrees Fahrenheit (°F). The kelvin (K) is the SI temperature unit used in science — it starts at absolute zero, so nothing can be colder than 0 K. Fahrenheit (°F) is the everyday temperature scale in the United States — 32° is freezing and 212° is boiling water. Everything is calculated locally in your browser — no server, and it works offline.
-457.87 °F
in degrees Fahrenheit (Fahrenheit)
To convert kelvins to degrees Fahrenheit, multiply the Kelvin value by 1.8, then subtract 459.67.
Switch to Fahrenheit to KelvinKelvin to Fahrenheit Chart
| Kelvins (K) | Degrees Fahrenheit (°F) |
|---|---|
| -40 | -531.67 |
| 0 | -459.67 |
| 10 | -441.67 |
| 20 | -423.67 |
| 25 | -414.67 |
| 30 | -405.67 |
| 37 | -393.07 |
| 40 | -387.67 |
| 100 | -279.67 |
Frequently Asked Questions
What is 273.15 K in degrees Fahrenheit?
273.15 K — the freezing point of water — is 32 °F. Type any temperature into the converter above for an instant result.
What is the formula to convert kelvins to degrees Fahrenheit?
To convert kelvins to degrees Fahrenheit, multiply the Kelvin value by 1.8, then subtract 459.67. For example, 10 K is -441.67 °F.
What is 300 kelvins in degrees Fahrenheit?
300 kelvins — a warm room in a physics problem — is 80.33 degrees Fahrenheit. The converter above works for any value, entirely in your browser.
Is the Kelvin to Fahrenheit formula exact?
Yes — the Kelvin and Fahrenheit scales are defined exactly in terms of each other, so "multiply the Kelvin value by 1.8, then subtract 459.67" gives an exact result. Values on this page are rounded to six significant digits for readability.