Convert Fahrenheit to Kelvin
Convert Fahrenheit to Kelvin using K = (°F − 32) × 5/9 + 273.15. Enter a temperature to see the result instantly.
Convert Fahrenheit to Kelvin
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How to convert Fahrenheit to Kelvin
Use the formula K = (°F − 32) × 5/9 + 273.15. For example, 98.6°F = 310.15K.
Fahrenheit to Kelvin conversion table
| Fahrenheit | Kelvin |
|---|---|
| 0 °F | 255.37 K |
| 32 °F | 273.15 K |
| 50 °F | 283.15 K |
| 68 °F | 293.15 K |
| 72 °F | 295.37 K |
| 98.6 °F | 310.15 K |
| 100 °F | 310.93 K |
| 212 °F | 373.15 K |
| Kelvin | Fahrenheit |
|---|---|
| 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 |
| 310 K | 98.33 °F |
| 373.15 K | 212 °F |
| 500 K | 440.33 °F |
About converting Fahrenheit to Kelvin
Fahrenheit (°F) and Kelvin (K) are temperature scales with different zero points, so they convert with a formula rather than a single multiplier: K = (°F − 32) × 5/9 + 273.15.
Type any temperature above to convert it instantly. For the opposite direction, use the Kelvin to Fahrenheit converter, or the full unit converter.
Reference temperatures
| Reference point | Celsius | Fahrenheit | Kelvin |
|---|---|---|---|
| Absolute zero | -273.15 °C | -459.67 °F | 0 K |
| Coldest air temperature recorded (Vostok, 1983) | -89.2 °C | -128.56 °F | 183.95 K |
| Water freezes | 0 °C | 32 °F | 273.15 K |
| Comfortable room | ≈ 20 °C | ≈ 68 °F | ≈ 293.15 K |
| Normal body temperature | ≈ 37 °C | ≈ 98.6 °F | ≈ 310.15 K |
| Hottest air temperature recorded (Death Valley, 1913) | 56.7 °C | 134.06 °F | 329.85 K |
| Water boils at sea level | 100 °C | 212 °F | 373.15 K |
| Moderate oven (gas mark 4) | 180 °C | 356 °F | 453.15 K |
The scales
Water freezes at 32 °F and boils at 212 °F at sea level, so a 1 °F step is 5/9 of a 1 °C step.
Used for: Weather and cooking in the US.
The SI base unit of temperature, defined since 2019 by the Boltzmann constant; 0 K is absolute zero.
Used for: Science, colour temperature of lights.
−40 is the one temperature that reads the same in Celsius and Fahrenheit.