Degree Fahrenheit (°F)
Definition
The Fahrenheit scale, °F = °C × 9/5 + 32 — water freezes at 32 °F and boils at 212 °F.
History
The Fahrenheit scale was devised by the physicist Daniel Gabriel Fahrenheit in 1724, using a brine freezing point and human body temperature to set its reference points. It places the freezing point of water at 32 degrees and the boiling point at 212.
Where it is used
Fahrenheit is used mainly in the United States and a few nearby territories for weather, cooking and body temperature, while most of the world uses Celsius.
Typical uses include weather in the US, oven temperatures, body temperature.
Conversion pages
These pages convert degree Fahrenheit to or from another unit in temperature.
Other Temperature units
Sources
- NIST HB 44 NIST Handbook 44, Appendix C, Conversion Equations for Units of Temperature · Dataset reviewed Nov 11, 2026