-20 °F = -28.8889 °C
Subtract 32 from the Fahrenheit temperature, then multiply by 5/9. Example: (-20 − 32) × 5/9 = -28.8889.
Going the other way: -20 °C = -4 °F (see -20 °C to °F).
Need a different number? Use the degrees Fahrenheit to degrees Celsius converter.
| degrees Fahrenheit | degrees Celsius |
|---|---|
| -40 °F | -40 °C |
| -30 °F | -34.4444 °C |
| -10 °F | -23.3333 °C |
| -5 °F | -20.5556 °C |
| 0 °F | -17.7778 °C |
| 5 °F | -15 °C |
| 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 |