Handy Units
Fahrenheit to Kelvin°F → K
Formula: K = (°F − 32) × 5/9 + 273.15
Formula
K = (°F − 32) × 5/9 + 273.15
Example: 86 °F = 303.15 K
Temperature scales start from different zero points, so converting is more than multiplying: shift to a common zero (absolute zero, in kelvin), then scale by the size of a degree. That’s why 0 °C is 32 °F, not 0 °F.
Fahrenheit and Kelvin chart
| Fahrenheit (°F) | Kelvin (K) |
|---|---|
| -40 °F | 233.15 K |
| 0 °F | 255.372 K |
| 32 °F | 273.15 K |
| 50 °F | 283.15 K |
| 68 °F | 293.15 K |
| 77 °F | 298.15 K |
| 86 °F | 303.15 K |
| 98.6 °F | 310.15 K |
| 100 °F | 310.928 K |
| 212 °F | 373.15 K |
| 350 °F | 449.817 K |
| 400 °F | 477.594 K |
| Kelvin (K) | Fahrenheit (°F) |
|---|---|
| 0 K | -459.67 °F |
| 100 K | -279.67 °F |
| 200 K | -99.67 °F |
| 273.15 K | 32 °F |
| 300 K | 80.33 °F |
| 373.15 K | 212 °F |
| 1,000 K | 1,340.33 °F |
About these units
Fahrenheit (°F)Water freezes at 32 °F and boils at 212 °F; the everyday scale in the US.
Kelvin (K)The SI unit of temperature, counted from absolute zero: 0 K = −273.15 °C, with degrees the same size as Celsius.
Questions
How do I convert Fahrenheit to Kelvin?
K = (°F − 32) × 5/9 + 273.15; 86 °F = 303.15 K.