-40 °C = -40 °F
Multiply the Celsius temperature by 9/5 (1.8) and add 32. Example: (-40 × 1.8) + 32 = -40.
Going the other way: -40 °F = -40 °C (see -40 °F to °C).
Need a different number? Use the degrees Celsius to degrees Fahrenheit converter.
| degrees Celsius | degrees Fahrenheit |
|---|---|
| -30 °C | -22 °F |
| -20 °C | -4 °F |
| -10 °C | 14 °F |
| -5 °C | 23 °F |
| 0 °C | 32 °F |
| 5 °C | 41 °F |
| 10 °C | 50 °F |
| 15 °C | 59 °F |
| 20 °C | 68 °F |
| 22 °C | 71.6 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |