Kelvin, Celsius, and Fahrenheit scales compared.
The Fahrenheit scale is a temperature scale based on the freezing point of water (32°F) and the boiling point of water (212°F). The interval between these points is divided into 180 equal parts. Although replaced by the Celsius scale, the Fahrenheit scale is still sometimes used for non-scientific measurements. Degrees Fahrenheit are converted to degrees Celsius by subtracting 32 and then dividing by 1.8. The system was devised by the German physicist Gabriel Fahrenheit.