Kelvin to Fahrenheit Converter
How to convert kelvin to Fahrenheit
°F = K × 1.8 − 459.67
To convert kelvin to Fahrenheit, multiply the value in kelvin by 1.8, then subtract 459.67.
1 K = -457.87 °F
Examples
- Absolute zero: 0 K × 1.8 − 459.67 = -459.67 °F
- 300 K × 1.8 − 459.67 = 80.33 °F
Good to know
The scales differ in both zero point and degree size: K = (°F + 459.67) × 5/9. Absolute zero, 0 K, is −459.67 °F.
The kelvin scale starts at absolute zero, so there are no negative kelvin temperatures. Values are written without a degree sign: 300 K, not 300 °K.
Kelvin to Fahrenheit conversion table
| Kelvin (K) | Fahrenheit (°F) |
|---|---|
| 0 K | -459.67 °F |
| 50 K | -369.67 °F |
| 77 K | -321.07 °F |
| 100 K | -279.67 °F |
| 150 K | -189.67 °F |
| 200 K | -99.67 °F |
| 250 K | -9.67 °F |
| 273.15 K | 32 °F |
| 293.15 K | 68 °F |
| 298.15 K | 77 °F |
| 300 K | 80.33 °F |
| 310.15 K | 98.6 °F |
| 350 K | 170.33 °F |
| 373.15 K | 212 °F |
| 400 K | 260.33 °F |
| 500 K | 440.33 °F |
| 1,000 K | 1,340.33 °F |
Unit definitions
- Kelvin (K)
- The kelvin is the SI base unit of temperature, defined by fixing the value of the Boltzmann constant. Its scale starts at absolute zero and its unit is the same size as the degree Celsius; it is used throughout science and engineering.
- Fahrenheit (°F)
- On the Fahrenheit scale water freezes at 32 °F and boils at 212 °F at sea-level pressure, 180 degrees apart. It is the everyday temperature scale in the United States.