Fahrenheit to Celsius
Enter a value in fahrenheit to convert it to celsius.
20 °F = −6.6667 °C
Formula
°C = (°F − 32) × 5/9
Worked example
(98.6 − 32) × 5/9 = 66.6 × 5/9 = 37 °C
Results on this page are rounded to 4 decimal places (4 significant figures below 1). Use the decimal places option above for a different rounding.
Fahrenheit to Celsius table
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| −40 °F | −40 °C |
| 0 °F | −17.7778 °C |
| 10 °F | −12.2222 °C |
| 20 °F | −6.6667 °C |
| 32 °F | 0 °C |
| 40 °F | 4.4444 °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 |
| 212 °F | 100 °C |
| 350 °F | 176.6667 °C |
| 400 °F | 204.4444 °C |
Good to know
Celsius and Fahrenheit start from different zero points, so you can’t convert with a single multiplier. A change of 1 °C is a change of 1.8 °F. Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F) at sea level, and the two scales meet at −40.