How to convert degrees Fahrenheit to degrees Celsius
Formula: °C = (°F − 32) ÷ 1.8
Worked example: 68 °F → (68 − 32) ÷ 1.8 = 20 °C
Subtract 32, then divide by 1.8 (or multiply by 5/9). A quick estimate is to subtract 30 and halve: 70 °F gives about 20 °C (exact: 21.1 °C). For ovens: 350 °F is 176.7 °C, usually rounded to 180 °C, and 425 °F is 218.3 °C, rounded to 220 °C.
Degrees Fahrenheit to degrees Celsius conversion chart
| Degrees Fahrenheit (°F) | Degrees Celsius (°C) |
|---|---|
| -40 °F | -40 °C |
| -20 °F | -28.8889 °C |
| -10 °F | -23.3333 °C |
| 0 °F | -17.7778 °C |
| 10 °F | -12.2222 °C |
| 20 °F | -6.66667 °C |
| 32 °F | 5.68434 × 10⁻¹⁴ °C |
| 40 °F | 4.44444 °C |
| 50 °F | 10 °C |
| 60 °F | 15.5556 °C |
| 68 °F | 20 °C |
| 70 °F | 21.1111 °C |
| 75 °F | 23.8889 °C |
| 80 °F | 26.6667 °C |
| 90 °F | 32.2222 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.7778 °C |
| 110 °F | 43.3333 °C |
| 150 °F | 65.5556 °C |
| 200 °F | 93.3333 °C |
| 212 °F | 100 °C |
| 300 °F | 148.889 °C |
| 350 °F | 176.667 °C |
| 375 °F | 190.556 °C |
| 400 °F | 204.444 °C |
| 450 °F | 232.222 °C |
What is a degree Fahrenheit?
On the Fahrenheit scale, water freezes at 32 °F and boils at 212 °F, so 180 degrees separate the two points instead of 100. The United States uses it for weather, ovens and body temperature, where 98.6 °F is the classic normal value.
What is a degree Celsius?
The Celsius scale puts the freezing point of water at 0 °C and its boiling point at sea level at 100 °C. It is the temperature scale of almost every country outside the US, of science and of medicine. A change of one degree Celsius equals a change of one kelvin.