Fahrenheit (°F): Commonly used in the United States and a few other countries. Water freezes at 32°F and boils at 212°F under standard atmospheric pressure. Kelvin (K): Used in scientific and engineering contexts, especially in calculations involving absolute temperature. Absolute zero, the ...
Water freezes at 32° Fahrenheit and boils at 212° Fahrenheit, which is a difference of 180°. Therefore each degree on the Fahrenheit scale is equal to 100/180 or 5/9 degrees on the Celsius scale. How to convert Fahrenheit temperatures to Celsius: Subtract 32° to adjust for the ...