December 08, 2022

Fahrenheit to Celsius Formula, Examples | Convert F to C

No matter where you’re in the world, having knowledge of the outside temperature is relevant to prepare for the day or having knowledge for a trip. Among the three different units to calculate temp, Celsius and Fahrenheit are usually most common. As a math theory, it’s easy to look at the usefulness of converting from one to the other.

Let’s take a look where these scales come from and the formula to convert from Fahrenheit to Celsius. If you get this right, in future when you go for a trip, you can quickly convert these scales without searching online!

What Is Temperature?

The first thing to learn about Fahrenheit and Celsius is that they are units for metering temperatures.

Temperature is the magnitude employed to calculate the warmth or coldness of something. It is measured with three main units: Kelvin, Celsius and Fahrenheit. The Fahrenheit and Celsius scales are employed in almost every part of the world for daily life, on other hand the Kelvin temperature unit is more frequently utilized in a technical setting.

The Celsius and Fahrenheit temps are different measures as they are in accordance with the work of separate people.

The Celsius scale was invented by Anders Celsius, a Swedish scientist. He made this measure with water, founding temp values based on the freezing point and boiling point of water. He designated 100 degrees Celsius to the point when water boils and 0 to the freezing temp of water.

The Fahrenheit scale was founded by Daniel Gabriel Fahrenheit, a German physicist. His measurement was based on brine's freezing and boiling temperature, which is salty water. He designated the temp when water freezes at 32, while the temp when it boils is 212 degrees Fahrenheit.

Maximum countries determine temperature in Celsius, but English-speaking countries, in particular the United States and England, utilizes the Fahrenheit temperature unit.

What Is the Formula for Converting Fahrenheit to Celsius?

Now that we understand more about the Celsius and Fahrenheit measures, let's turn our attention on how the conversion between them functions. As we saw before, Celsius was created with the freezing and boiling points of water being 0 and 100 degrees Celsius. These measures correspond to 32 F for freezing and 212 F for boiling in Fahrenheit.

Formula to Convert to Celsius scale

Using water's characteristics, we can establish a relationship with the temperatures in the Fahrenheit and Celsius scales. Keep in mind that the boiling point of water is when it reaches 100 degrees Celsius. We also learned that the boiling point of water in Fahrenheit is 212 degrees. From here, we can make the following equation:

100 Celsius = 212 Fahrenheit

We can work out this formula for Celsius and get the following equation:

Celsius = (Fahrenheit - 32) * (5/9)

This is the formula for conversion from Fahrenheit and Celsius. To utilize it, replace the temp in Fahrenheit that you want to convert to Celsius.


Let's make sure that this formula works as intended. Let’s figure out 212 F to C.

C = (212 F - 32) * (5/9)

C = 180 * 5/9

C = 100

As expected: 212 degrees F = 100 degrees C

How to Convert from Fahrenheit to Celsius

Now that we understand the formula to change Fahrenheit to Celsius, let's walkthrough] it step-by-step.

Steps to convert Fahrenheit to Celsius

1) Primarily, take the temperature in Fahrenheit that you have to change, and subtract 32 from it.

2) Next, multiply that number by 5/9.

3) The resulting number is same temperature in Celsius.

Example 1

We can also utilize the conversion equations to study the regular body temp from Fahrenheit to Celsius.

98.6 F to C

Put this specified temperature into the Celsius formula:

C = (98.6 F - 32) * (5/9)

C = 66.6 * 5/9

C = 37

As we've just seen, a regular human body temperature is 98.6 degrees F, or its same in the Celsius unit, 37 degrees C.

Example 2

Let's utilize the Celsius conversion formula to transform a single degree Fahrenheit to Celsius. As usual, we will have to put the value into the Celsius equation:

C = (1 F - 32) * (5/9)

By working out the complete formula, we will get the answer as a Celsius temperature of:

C = (- 31) * (5/9)

C = -17.22

One degree Fahrenheit seems even more chilly when you learn that it equals -17.22 degrees Celsius!

Grade Potential Can Guide You with Converting from Fahrenheit to Celsius

All this information is only the end of the wedge regarding temperature scales. Temperature conversion is a crucial theory in math and physics. Grade Potential can help you conquer it now before you fall behind in your studies.

Whether you need assistance in mathematics, chemistry, or any other subject, Grade Potential has a lot of tutors in all academic subjects, prepared to guide you immediately. Connect with your potential by scheduling a session today.