What is the formula to convert Fahrenheit to Celsius?

The formula to convert Fahrenheit to Celsius is C = (F - 32) x 5/9. This formula is derived from the relationship between the two temperature scales, where the freezing point of water is 32°F and 0°C, and the boiling point is 212°F and 100°C.

To perform the conversion, you first subtract 32 from the Fahrenheit temperature, which accounts for the offset in the starting points of the two scales. Subsequently, multiplying by 5/9 adjusts for the difference in the size of the degree; Celsius degrees are larger than Fahrenheit degrees. This means that a degree change in Celsius corresponds to a change of 1.8 degrees in Fahrenheit, thus requiring the multiplication by 5/9 to accurately reflect this difference.

The alternative formulas provided involve incorrect operations, such as adding 32 instead of subtracting it, or using the wrong factor (9/5). These inaccuracies prevent them from correctly converting temperatures from Fahrenheit to Celsius.