Find Fahrenheit To Celsius
Subtract 32 from Fahrenheit and multiply by 5/9.
Formula: °C = (°F − 32) × 5/9
Apply the factor to the original quantity and keep the source and result units visible. Reversing the factor is the most common conversion mistake.
Example: compare the result for 1 source unit with the factor shown in the formula. If the direction is correct, the converted unit should match the calculator label.