Convert Fahrenheit to Celsius
1 Fahrenheit = 0.555556 Celsius · 1 Celsius = 1.8 Fahrenheit
Conversion formula
°C = 0.5555555556 × °F + -17.77777778 → °F = 0.555556 °C
The reverse direction: 1 °C = 1.8 °F (affine — offset included).
Quick reference
| °F | °C |
|---|---|
| 1 °F | -17.222222 °C |
| 2 °F | -16.666667 °C |
| 3 °F | -16.111111 °C |
| 5 °F | -15 °C |
| 10 °F | -12.222222 °C |
| 20 °F | -6.6666667 °C |
| 25 °F | -3.8888889 °C |
| 50 °F | 10 °C |
| 100 °F | 37.777778 °C |
| 250 °F | 121.11111 °C |
| 500 °F | 260 °C |
| 1,000 °F | 537.77778 °C |
About these units
The Fahrenheit (°F) and the Celsius (°C) are both units of temperature. Under the standard definition, one °F equals exactly -17.222222 °C. This category's SI base unit is the kelvin.