Kelvin to Fahrenheit Converter
Convert kelvins (K) to degrees Fahrenheit (°F) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
Kelvin to Fahrenheit formula
°F = (K − 273.15) × 9/5 + 32
To convert kelvins to degrees Fahrenheit, apply the formula °F = (K − 273.15) × 9/5 + 32. For example, 300 K:
°F = (300 − 273.15) × 9/5 + 32°F = 26.85 × 9/5 + 32°F = 80.33
So 300 K = 80.33 °F.
Kelvin to Fahrenheit conversion table
Fahrenheit back to Kelvin
The same values converted the other way, rounded for everyday use:
| Fahrenheit | Kelvin |
|---|---|
| -459.67 °F | 0 K |
| -279.67 °F | 100 K |
| -99.67 °F | 200 K |
| -0.004 °F | 255.37 K |
| 32 °F | 273.15 K |
| 68 °F | 293.15 K |
| 80.33 °F | 300 K |
| 98.6 °F | 310.15 K |
About the units
Kelvin (K)
The kelvin is the SI unit of temperature. It starts at absolute zero (0 K = −273.15 °C) and uses degrees the same size as Celsius, so it never goes negative.
Fahrenheit (°F)
The Fahrenheit scale puts water’s freezing point at 32 °F and boiling point at 212 °F. It is the everyday temperature scale in the United States.
Frequently asked questions
How do you convert Kelvin to Fahrenheit?
Use °F = (K − 273.15) × 9/5 + 32. For example, 300 K = 80.33 °F.
What is 300 Kelvin in Fahrenheit?
300 K = 80.33 °F.
How do I convert Fahrenheit back to Kelvin?
Use the reverse formula: K = (°F − 32) × 5/9 + 273.15.