Fahrenheit

The Fahrenheit (°F) temperature scale is used for measuring temperature in the US customary system of measurement. It is primarily used in the US and its territories. Most other countries use the Celsius scale.

The Fahrenheit scale is defined based on the freezing point and boiling point of water:

32 °F (the freezing point of water)

212 °F (the boiling point of water)

In the Celsius scale, the freezing point of water is 0 °C and the boiling point is 100 ° C.

## Converting Fahrenheit to Celsius

Since most of the world uses the Celsius scale, it can be useful to know how to convert Fahrenheit to Celsius. Using f to mean temperature in Fahrenheit, and c to be temperature in Celsius, converting between the two scales can be done using the following formulas.

• Fahrenheit to Celsius: (f – 32) × = c
• Celsius to Fahrenheit: (c × ) + 32 = f

The following converter can be used to convert from Fahrenheit to Celsius or Celsius to Fahrenheit. Just enter a value in either Fahrenheit or Celsius to convert between the two.

Examples

1. Convert 37 °F to Celsius:

(37 – 32) × = 2.78 °C

2. Convert 44 °C to Fahrenheit:

(44 × ) + 32 = 111.2 °F

### Did you know?

The Fahrenheit temperature scale was developed in the early 1700s by a German scientist named Gabriel David Fahrenheit. He was the first person to make a mercury thermometer.

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