The conversion
800°F = 426.67°C
°C = (°F − 32) × 5/9, so (800 − 32) × 5/9 = 426.67.
800 °F is well outside the range outdoor air occupies on Earth, so there is no useful weather description for it — this page is arithmetic rather than a forecast.
Convert something else
68°F
The range either side
Neighbouring values, for when the number you actually wanted was a degree or two away.
| Fahrenheit | Celsius |
|---|---|
| 795 °F | 423.89 °C |
| 796 °F | 424.44 °C |
| 797 °F | 425 °C |
| 798 °F | 425.56 °C |
| 799 °F | 426.11 °C |
| 800 °F | 426.67 °C |
| 801 °F | 427.22 °C |
| 802 °F | 427.78 °C |
| 803 °F | 428.33 °C |
| 804 °F | 428.89 °C |
| 805 °F | 429.44 °C |
The other direction
426.67 °C converts back to 800 °F, which is the same relationship read the other way. Going from Celsius to Fahrenheit, multiply by 9/5 first and then add 32. Adding first is the usual mistake.
The full converter handles any value, in either direction, including kelvin, and shows the formula as it works.