40 °F = 4.44444 °C
Subtract 32 from the Fahrenheit temperature, then multiply by 5/9. Example: (40 − 32) × 5/9 = 4.44444.
Going the other way: 40 °C = 104 °F (see 40 °C to °F).
Need a different number? Use the degrees Fahrenheit to degrees Celsius converter.
| degrees Fahrenheit | degrees Celsius |
|---|---|
| 10 °F | -12.2222 °C |
| 15 °F | -9.44444 °C |
| 20 °F | -6.66667 °C |
| 22 °F | -5.55556 °C |
| 25 °F | -3.88889 °C |
| 30 °F | -1.11111 °C |
| 32 °F | 0 °C |
| 35 °F | 1.66667 °C |
| 37 °F | 2.77778 °C |
| 45 °F | 7.22222 °C |
| 50 °F | 10 °C |
| 60 °F | 15.5556 °C |