Kelvin to Fahrenheit Converter
Convert Kelvin to Fahrenheit instantly. Enter a temperature and get the exact Fahrenheit value, with the formula and a reference table.
How to convert Kelvin to Fahrenheit
°F = (K − 273.15) × 9/5 + 32
Celsius, Fahrenheit and Kelvin are three temperature scales with different zero points and step sizes, so converting between them means shifting and rescaling — not just multiplying. This tool applies the exact Kelvin-to-Fahrenheit formula, so results are accurate to the decimal.
10 Kelvin = -441.67 Fahrenheit. Multiply your Kelvin figure by the factor above (or just type it into the box) to convert any amount.
Need the other direction? Fahrenheit to Kelvin
Kelvin to Fahrenheit table
| Kelvin (K) | Fahrenheit (°F) |
|---|---|
| 1 | -457.87 |
| 2 | -456.07 |
| 3 | -454.27 |
| 5 | -450.67 |
| 10 | -441.67 |
| 20 | -423.67 |
| 25 | -414.67 |
| 50 | -369.67 |
| 100 | -279.67 |
| 250 | -9.67 |
| 500 | 440.33 |
| 1,000 | 1,340.33 |
Frequently asked questions
How do you convert Kelvin to Fahrenheit?
Use the formula °F = (K − 273.15) × 9/5 + 32. Type a value into the box above and the converted temperature appears instantly.
What is a common reference point?
Water freezes at 0°C / 32°F / 273.15 K and boils at 100°C / 212°F / 373.15 K at sea level — handy anchors to sanity-check any conversion.
Why isn't it a simple multiplication?
Because the scales don't share a zero. Fahrenheit's zero and Celsius's zero are different temperatures, so you shift as well as scale.