Definition: Fahrenheit is a temperature scale where water freezes at 32 °F and boils at 212 °F under standard atmospheric pressure.
History/origin: Developed by Daniel Gabriel Fahrenheit in 1724.
Current use: Commonly used in the United States and some Caribbean countries for everyday temperature measurements.
Definition: Kelvin is the SI base unit of temperature, starting at absolute zero (0 K), where all thermal motion ceases.
History/origin: Developed by William Thomson, Lord Kelvin.
Current use: Used primarily in scientific contexts to measure thermodynamic temperature.
| Fahrenheit (°F) | Kelvin (K) |
|---|---|
| -459.67 | 0.00 |
| 32.00 | 273.15 |
| 68.00 | 293.15 |
| 98.60 | 310.15 |
| 212.00 | 373.15 |
| 500.00 | 533.15 |
| 1000.00 | 811.15 |
Formula: Kelvin = (Fahrenheit - 32) × 5/9 + 273.15
Example: convert 77 °F to K:
(77 - 32) × 5/9 + 273.15 = 298.15 K