How it's calculated
C = (F − 32) × 5 ÷ 9
F = degrees Fahrenheit, C = degrees Celsius. Reverse: F = C × 9 ÷ 5 + 32.
Common values
| Fahrenheit | Celsius | Note |
|---|---|---|
| 32 °F | 0 °C | Water freezes |
| 68 °F | 20 °C | Room temperature |
| 98.6 °F | 37 °C | Body temperature |
| 212 °F | 100 °C | Water boils |
Common questions
What is the formula to convert F to C?
Subtract 32 from the Fahrenheit value, then multiply by 5/9. For example, (212 − 32) × 5/9 equals 100 °C.
At what temperature are F and C equal?
At minus 40 degrees. −40 °F is the same as −40 °C.