The Fahrenheit is the temperature scale in the customary system. The Fahrenheit is mostly used in the United States and a few other countries such as Belize, Bahamas, and Cyprus.
There are two reference points commonly used for this temperature scale. As seen in the thermometer above, the first reference point is the freezing point of water.
Water freezes at 32 degrees Fahrenheit.
The other reference point not shown on the scale is the boiling point of water.
Water boils at 212 degrees Fahrenheit.