°F to K Conversion Calculator
Click on the following link if you want to convert Kelvin to Fahrenheit – K to °F
History
The Fahrenheit scale was developed by Daniel Gabriel Fahrenheit in the early 18th century.
He based his scale on three reference points:
- 0°F for the freezing point of a brine mixture
- 32°F for water’s freezing point
- 212°F for water’s boiling point
A century later, Lord Kelvin introduced the Kelvin scale, which starts at absolute zero and is based on the Celsius degree size.
The two systems differ completely in both starting point and step size, but they can be converted with a precise formula.
Common Usage
- Fahrenheit (°F) is used mainly in the United States for weather, home heating, and cooking.
- Kelvins (K) are used worldwide in science, physics, and engineering.
For example, 68°F (a pleasant room temperature) equals 293 K.
Fahrenheit to Kelvins Conversion Formula
To convert Fahrenheit to Kelvin:
K = (°F − 32) × 5/9 + 273.15
Example:
Convert 212°F (boiling point of water) to Kelvins.
(212 − 32) × 5/9 + 273.15 = 373.15 K
Conversion Table
| Fahrenheit (°F) | Kelvin (K) |
|---|---|
| -459.67 °F | 0 K |
| 0 °F | 255.37 K |
| 32 °F | 273.15 K |
| 68 °F | 293.15 K |
| 98.6 °F | 310.15 K |
| 212 °F | 373.15 K |
| 300 °F | 422.04 K |
| 400 °F | 477.59 K |
| 500 °F | 533.15 K |
| 1,000 °F | 810.93 K |
Interesting Facts
- The difference between freezing and boiling water is 180°F but 100 K (or 100°C).
- Absolute zero is −459.67°F or 0 K.
- The Fahrenheit degree is smaller than a Celsius or Kelvin degree, so changes appear larger numerically.
Frequently Asked Questions
1. How do I convert Fahrenheit to Kelvin?
Use the formula: (°F − 32) × 5/9 + 273.15.
2. What is 0°F in Kelvin?
255.37 K.
3. What is 212°F in Kelvin?
373.15 K.
4. What is room temperature in Kelvin?
Around 293 K (68°F).
5. Why do scientists prefer Kelvin?
Because it starts at absolute zero, which makes temperature calculations in physics simpler.
