Conversion Formula
$$T_{K} = (T_{°F} - 32) \times \frac{5}{9} + 273.15$$
Subtract 32 from Fahrenheit, multiply by 5/9, and add 273.15 to get Kelvin.
°F to K Conversion Table
| Degree Fahrenheit (°F) | Kelvin (K) |
|---|---|
| -40 | 233.1 |
| -20 | 244.3 |
| 0 | 255.4 |
| 10 | 260.9 |
| 20 | 266.5 |
| 25 | 269.3 |
| 30 | 272 |
| 37 | 275.9 |
| 50 | 283.1 |
| 100 | 310.9 |
| 200 | 366.5 |
| 500 | 533.1 |
°F to K in Engineering
Temperature conversions are fundamental across all engineering disciplines. Celsius and Fahrenheit are used for everyday measurements, while Kelvin is required for thermodynamic calculations and Rankine for US customary thermodynamic systems.
Degree Fahrenheit: US customary temperature scale. Water freezes at 32°F and boils at 212°F. Standard in US HVAC and weather.
Kelvin: SI base unit of temperature. Absolute thermodynamic scale starting at absolute zero. Required for gas law and thermodynamic calculations.