Fahrenheit to Celsius Converter
Convert degrees Fahrenheit to degrees Celsius instantly. Type a value, change either unit, or press swap to go the other way.
20 degrees Fahrenheit = -6.6666667 degrees Celsius
How to convert degrees Fahrenheit to degrees Celsius
°C = (°F − 32) × 5/9
Temperature scales have different zero points, so the conversion needs both a multiplication and an offset rather than a single factor. Apply the formula above in the order shown.
Worked examples
- 32 °F: (32 − 32) × 5/9 = 0 °C
- 50 °F: (50 − 32) × 5/9 = 10 °C
- 68 °F: (68 − 32) × 5/9 = 20 °C
Subtract 30 and halve the result. 80 °F gives 25 °C by this shortcut (exactly 26.7 °C).
Fahrenheit to Celsius conversion table
Degrees Fahrenheit to Degrees Celsius
| °F | °C |
|---|---|
| -40 | -40 |
| 0 | -17.777778 |
| 32 | 0 |
| 50 | 10 |
| 68 | 20 |
| 72 | 22.222222 |
| 98.6 | 37 |
| 212 | 100 |
| 350 | 176.66667 |
| 450 | 232.22222 |
Degrees Celsius to Degrees Fahrenheit
| °C | °F |
|---|---|
| -40 | -40 |
| 0 | 32 |
| 32 | 89.6 |
| 50 | 122 |
| 68 | 154.4 |
| 72 | 161.6 |
| 98.6 | 209.48 |
| 212 | 413.6 |
| 350 | 662 |
| 450 | 842 |
When you need to convert degrees Fahrenheit to degrees Celsius
American weather forecasts, oven settings and body thermometers use Fahrenheit, while most of the world reads Celsius. If you are traveling, cooking from a US recipe or checking a fever, you need a reliable way to turn Fahrenheit into Celsius.
About the units
Degree Fahrenheit (°F)
Fahrenheit puts water's freezing point at 32 °F and boiling point at 212 °F. It is still used for weather, cooking and body temperature in the United States.
Degree Celsius (°C)
Celsius sets 0 °C at the freezing point of water and 100 °C at its boiling point at sea level. It is used for weather, cooking and everyday temperatures in nearly every country.
Frequently asked questions
What is the formula to convert degrees Fahrenheit to degrees Celsius?
Use °C = (°F − 32) × 5/9. For example, 50 °F becomes 10 °C.
What is 350 °F and 98.6 °F in Celsius?
350 °F is 176.7 °C, which most ovens round to 180 °C. 98.6 °F is exactly 37 °C, the standard normal body temperature.
Can I convert other temperature units with this tool?
Yes. Use the From and To drop-downs in the converter to choose any temperature unit, or press the swap button to reverse the conversion. All calculations use internationally defined conversion factors.