UnitConFahrenheit to Celsius Converter
Convert Fahrenheit to Celsius for weather, cooking, and health readings. Americans traveling internationally or using metric references frequently need to translate familiar Fahrenheit values into Celsius.
Formula
Subtract 32 from Fahrenheit and multiply by 5/9 to get Celsius. To reverse, multiply Celsius by 9/5 and add 32.
Quick reference
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 0 | -17.77778 |
| 32 | 0 |
| 50 | 10 |
| 68 | 20 |
| 72 | 22.22222 |
| 98.6 | 37 |
| 100 | 37.77778 |
| 150 | 65.55556 |
| 200 | 93.33333 |
| 212 | 100 |
About these units
Fahrenheit
Gabriel Fahrenheit introduced his temperature scale in 1724, calibrating it against body temperature and the freezing of brine. His mercury thermometer design was the most accurate of its era and his scale dominated European science for decades.
Celsius
The Celsius scale superseded Fahrenheit across most of the world following the adoption of the metric system. Its 0-to-100 range between water's freezing and boiling points is considered more intuitive for science and everyday use.
Frequently asked questions
(72 - 32) × 5/9 = 40 × 5/9 ≈ 22.2°C — a comfortable room temperature.
(98.6 - 32) × 5/9 = 66.6 × 5/9 = 37°C — normal human body temperature.
(212 - 32) × 5/9 = 180 × 5/9 = 100°C — the boiling point of water at sea level.