Kelvin to Fahrenheit Converter
Convert kelvin to fahrenheit using the formula °F = (K - 273.15) × 9/5 + 32. The calculator below shows higher precision results. The reference table is rounded for readability.
Formula and Step-by-Step
°F = (K - 273.15) × 9/5 + 32
Step-by-step: 1 K to °F
- Start with 1 K
- Convert to Celsius: 1 - 273.15 = -272.15°C
- Convert to Fahrenheit: -272.15 × 9/5 + 32 = -457.87
- Result: 1 K = -457.87°F
Conversion Table
Common kelvin to fahrenheit values. The table and calculator both use the same conversion formula shown above.
| Kelvin (K) | Fahrenheit (°F) |
|---|---|
| -40 K | -531.67 °F |
| -20 K | -495.67 °F |
| 0 K | -459.67 °F |
| 10 K | -441.67 °F |
| 20 K | -423.67 °F |
| 25 K | -414.67 °F |
| 30 K | -405.67 °F |
| 37 K | -393.07 °F |
| 50 K | -369.67 °F |
| 100 K | -279.67 °F |
| 150 K | -189.67 °F |
| 200 K | -99.67 °F |
What Are Kelvin and Fahrenheit?
What is a Kelvin?
Kelvin is the SI base unit of temperature. It starts at absolute zero (the coldest possible temperature) and uses the same degree size as Celsius. 0 K = -273.15 degrees C.
What is a Fahrenheit?
Fahrenheit is a temperature scale where 32 degrees is the freezing point of water and 212 degrees is the boiling point. It is primarily used in the United States.
Why convert kelvin to fahrenheit?
People typically convert kelvin to fahrenheit when making scientific temperature data relatable in US everyday terms.
Frequently Asked Questions
1 kelvin equals -457.87 fahrenheit. This uses the formula: °F = (K - 273.15) × 9/5 + 32.
The formula is: °F = (K - 273.15) × 9/5 + 32. See the K to °F formula page for step-by-step worked examples.
Use the fahrenheit to kelvin converter. 1 °F = 255.93 K.
Most unit conversions use simple multiplication because the scales share a zero point. Temperature scales have different zero points (0 degrees C = 32 degrees F), so the formulas require both multiplication and addition or subtraction.
For Celsius to Fahrenheit, double the value and add 30. For Fahrenheit to Celsius, subtract 30 and halve. These give close approximations for everyday use.