How to Convert Fahrenheit to Celcius °F to °C

While working in the science labs for various experiments measuring temperatures is a very important task to do. There are lots of different ways available out there to measure temperature, for example Celsius, Fahrenheit, Kelvin, rankine, Reaumur and etc. but in the cases of most experiments Celsius, Fahrenheit and Kelvin had been using since a long time. Basically Fahrenheit, Kelvin and Celsius are the scales to measure temperature and those were invented by some renowned scientists of our universe. So in the order to know the process of converting temperature to Celsius from Fahrenheit we must know all the history hidden behind this.

What is Fahrenheit Scale?

Fahrenheit scale was invented by the German physicist and an instrument maker Fahrenheit Gabriel Daniel in 1714. Who used to be a local resident of the Netherlands. Fahrenheit scale is a temperature scale that uses to measure temperature. This scale set up the boiling point of the water at 212 and freezing point at 32. This scale nowadays mostly used in the United States and in the Caribbean countries. And the rest of the world is using the Celsius scale to measure temperature. In this scale the zero point was set by placing the thermometer in a mixture of ice water and salt. The stable temperature was taken as 0. The second point at 32 and the third at 96 which was basically the temperature of human body known as the blood-heat.

What is Celsius Scale?

Celsius scale also known as the centigrade scale. Used by millions of user all over the world for experimental works. This scale was invented by the Swedish astronomer Anders Celsius in 1742. In this scale the boiling point of the water was set on 100o and the freezing point of water was set on 0o. It is called as the centigrade scale sometimes because of the interval of 100 degree between the stable points. The Celsius scale is used as general wherever the metric system of units has been used. It is the SI unit of the measurement of the temperature. Later part of the 19th century 0o in Celsius method has been used as the boiling point of water and the 100o for the melting point of the snow. So eventually the 0o was used at the cold end and 100o at the hot end.

Why the converting process of Fahrenheit to Celsius is difficult?

For some obvious reasons measuring temperature is bit difficult than measuring other things like length, area, time etc. if you are opting to measure length then it appears to be a very easy task for you. For example if you are measuring 0 centimeters then you might have a very clear visionary of the value of 0 cm and while converting 0 centimeter to the other units of length, that can be done very easily because we all know that 0 centimeter=0meter=0milimeter=0inches. And if you have to measure 1 centimeter from o centimeter then you can simply just add 1 to 0. The only difference between 1 inches and 1 centimeter is the amount of the length we are adding.

But in the cases of temperature it is not gonna happen in this way. Because the relations of the temperature does not represent the same equation as the length. They don’t even all start from the 0. If we take absolute zero to be 0oF, 0oC, 0K then converting between them would not be so difficult. But the exact values of zero in these scales are different so we actually could not be able to tell the exact value.

How to Convert Fahrenheit to Celsius?

All the information given above is the simple description about the Fahrenheit and Celsius. But we are going to discuss about the conversion of Fahrenheit to Celsius. It’s a very easy process just follow the steps mentioned below very carefully.

Absolute zero -459.67°F -273°C
zero 0°F -17.78°C
Boiling point


212°F 100°C
Freezing point 32°F 0°C
parity -40°F -40°C
Body temperature 98.6°F 37°C

So if you are facing trouble to covert a specific temperature into Celsius from Fahrenheit and you want to know the process then you have to know the formula of the converting Fahrenheit to Celsius.

                                                           C = 5/9 x (F-32)

This is the basic formula for converting Fahrenheit to Celsius. Here in this equation C represents the temperature in Celsius and the F represents the temperature in Fahrenheit which you have to convert. After knowing the formula it becomes really easy to convert temperature into Celsius. It is quite very easy to covert Fahrenheit to Celsius and the process is divided into three steps.

  1. First of all subtract 32 from the Fahrenheit temperature.
  2. Then multiply the value with 5
  3. After that divide the whole value with 9.

To know the exact temperature in Celsius follow the mentioned steps above.

EXAMPLE:  what if we have to convert 96oF to Celsius?

The main formula we have to use here is C = 5/9 x (F-32)

  • 96oF-32 = 64
  • Now 64 x 5 = 320
  • Then, 320/9 is 35.5oC

So the exact figure for 96oF temperature in Celsius is 35.5oC. Don’t you think it’s so much easy? If so then get your work done quickly. And one more thing, please check your answer to make sure that if the answer is making sense or not? Always remember that a Celsius scale value will always be lesser that the corresponding Fahrenheit scale value because the Celsius scale was invented in the basis of boiling and freezing points of water. So in the Celsius scale water gets boil in the temperature of 100oC and starts freezing at 0oC. And in the Fahrenheit scale the values will be totally different. In the Fahrenheit scale the boiling point for water is 212oF and the freezing point is 32oF.

Shortcut Process for Converting Temperature

There is very little secret is hidden behind the conversion of temperature from Fahrenheit to Celsius. Suppose you are travelling somewhere around European countries then you might know that there the temperature is always showed in Fahrenheit. So it is not a big problem if you don’t know the exact formula of the conversion. There is very short process to convert it.

Just subtract 30 from the temperature given in Fahrenheit and then divide it with two and you will get the approximate value of temperature in Celsius.

EXAMPLE:  what if we have to convert 84oF in to Celsius?

  1. First of all  84oF-30 is equals to 54
  2. Then dividing 54 with 2 is 27oF

Table of Quick Conversion

Fahrenheit Celsius
100 F      38 C
90 F        32 C
50 F        10 C
10 F        -12 C
-10 F      -23 C
0 F          -18 C
-30 F      -34 C
80 F        27 C
-40 F      -40 C

Final Lines

So this is all about the methods for converting Celsius into Fahrenheit and Fahrenheit into Celsius. If you are getting trouble to get over from the impasse and know the process then don’t worry follow the process we have mentioned above. This will help you to get your done very easily.

So once again we want to thank you all for going through this article. We will keep updating this post with new fact and reasons. So keep visiting our site and if you find any problem while applying these methods mentioned above then obviously let us know in the comment section, we will help you out as early as possible.

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