Handy Units
Fahrenheit to Celsius°F → °C
Formula: °C = (°F − 32) × 5/9
Formula
°C = (°F − 32) × 5/9
Example: 86 °F = 30 °C
Temperature scales start from different zero points, so converting is more than multiplying: shift to a common zero (absolute zero, in kelvin), then scale by the size of a degree. That’s why 0 °C is 32 °F, not 0 °F.
Fahrenheit and Celsius chart
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| -40 °F | -40 °C |
| 0 °F | -17.7778 °C |
| 32 °F | 5.68434 × 10⁻¹⁴ °C |
| 50 °F | 10 °C |
| 68 °F | 20 °C |
| 77 °F | 25 °C |
| 86 °F | 30 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.7778 °C |
| 212 °F | 100 °C |
| 350 °F | 176.667 °C |
| 400 °F | 204.444 °C |
| Celsius (°C) | Fahrenheit (°F) |
|---|---|
| -40 °C | -40 °F |
| -20 °C | -4 °F |
| -10 °C | 14 °F |
| 0 °C | 32 °F |
| 10 °C | 50 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 36.5 °C | 97.7 °F |
| 37 °C | 98.6 °F |
| 38 °C | 100.4 °F |
| 40 °C | 104 °F |
| 100 °C | 212 °F |
| 180 °C | 356 °F |
| 200 °C | 392 °F |
About these units
Fahrenheit (°F)Water freezes at 32 °F and boils at 212 °F; the everyday scale in the US.
Celsius (°C)Water freezes at 0 °C and boils at 100 °C at sea level. Used in most of the world.
Questions
How do I convert Fahrenheit to Celsius?
°C = (°F − 32) × 5/9; 86 °F = 30 °C.
At what temperature are Fahrenheit and Celsius equal?
At −40: −40 °F is exactly −40 °C.