What is the formula to convert Fahrenheit to Celsius?

The formula for converting Fahrenheit to Celsius is based on the linear relationship between the two temperature scales. The correct formula is C = 5/9(F - 32). This formula clarifies that you first subtract 32 from the Fahrenheit temperature to adjust for the offset of the two scales, and then you multiply the result by 5/9 to account for the difference in the size of the degree increments between the two systems.

This approach accurately converts the temperature and reflects the fact that one degree change on the Celsius scale represents a smaller temperature change compared to one degree change on the Fahrenheit scale. Hence, this method provides the precise conversion needed when translating temperatures from Fahrenheit to Celsius. Understanding the reasoning behind this formula is essential for accurate temperature conversions in medical settings, where precise measurements are critical for patient care.