About °F to °C
Convert US weather forecasts, fever readings, and recipe oven temperatures to Celsius.
Temperature scales have different zero points, so you cannot just multiply: use °C = (°F − 32) × 5/9. For example, 70 °F = 21.1111 °C.
Fahrenheit: water freezes at 32 °F and boils at 212 °F at sea level. Celsius: water freezes at 0 °C and boils at 100 °C at sea level.
Fahrenheit to Celsius conversion table
Formula: °C = (°F − 32) × 5/9
| Fahrenheit | Celsius |
|---|---|
| -40 °F | -40 °C |
| 0 °F | -17.7778 °C |
| 10 °F | -12.2222 °C |
| 20 °F | -6.66667 °C |
| 32 °F | 0 °C |
| 40 °F | 4.44444 °C |
| 50 °F | 10 °C |
| 60 °F | 15.5556 °C |
| 68 °F | 20 °C |
| 70 °F | 21.1111 °C |
| 75 °F | 23.8889 °C |
| 80 °F | 26.6667 °C |
| 90 °F | 32.2222 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.7778 °C |
| 212 °F | 100 °C |
| 350 °F | 176.667 °C |
| 400 °F | 204.444 °C |
| 450 °F | 232.222 °C |
Values rounded to 6 significant figures.
How to do it
- 1
Type a value in Fahrenheit in the converter above (it is preset to °F → °C).
- 2
Read the result instantly; tap Swap units to convert the other way.
- 3
Use the table for common values or the formula °C = (°F − 32) × 5/9 to convert by hand.