Kelvin to Fahrenheit Formula
The complete formula for converting kelvin (K) to fahrenheit (°F). See the formula, how it works, and worked examples below.
°F = (K - 273.15) × 9/5 + 32
How the Formula Works
Temperature conversion between kelvin and fahrenheit uses an offset formula, not a simple multiplication. This is because temperature scales have different zero points.
Worked Examples
0 K to °F
- Start with 0 K
- Convert to Celsius: 0 - 273.15 = -273.15°C
- Convert to Fahrenheit: -273.15 × 9/5 + 32 = -459.67
- Result: 0 K = -459.67°F
20 K to °F
- Start with 20 K
- Convert to Celsius: 20 - 273.15 = -253.15°C
- Convert to Fahrenheit: -253.15 × 9/5 + 32 = -423.67
- Result: 20 K = -423.67°F
37 K to °F
- Start with 37 K
- Convert to Celsius: 37 - 273.15 = -236.15°C
- Convert to Fahrenheit: -236.15 × 9/5 + 32 = -393.07
- Result: 37 K = -393.07°F
100 K to °F
- Start with 100 K
- Convert to Celsius: 100 - 273.15 = -173.15°C
- Convert to Fahrenheit: -173.15 × 9/5 + 32 = -279.67
- Result: 100 K = -279.67°F
200 K to °F
- Start with 200 K
- Convert to Celsius: 200 - 273.15 = -73.15°C
- Convert to Fahrenheit: -73.15 × 9/5 + 32 = -99.67
- Result: 200 K = -99.67°F
Reverse Formula: Fahrenheit to Kelvin
K = (°F - 32) × 5/9 + 273.15
See the full Fahrenheit to Kelvin formula for worked examples.
Related
Frequently Asked Questions
The formula is: °F = (K - 273.15) × 9/5 + 32. See the worked examples above for step-by-step breakdowns, or use the Kelvin to Fahrenheit converter for instant results.
100 kelvin = -279.67 fahrenheit. Apply the formula: °F = (K - 273.15) × 9/5 + 32.