Convert Fahrenheit To Degree Celsius: C Program

Temperature of a city in Fahrenheit degree is input through the keyboard. Write a program to convert this temperature into Degree Celsius / Centigrade.

Related Read:
Basic Arithmetic Operations In C
Convert Degree Celsius To Fahrenheit: C Program

Formula to Convert Fahrenheit To Celsius.

From our previous video tutorial Convert Degree Celsius To Fahrenheit: C Program we already know the formula to convert temperature from Celsius to Fahrenheit. We will use the same formula and convert it to calculate Degree celsius from Fahrenheit.

Fahrenheit = (Centigrade * 1.8) + 32;
(Fahrenheit – 31) = (Centigrade * 1.8);
(Fahrenheit – 31) / 1.8 = (Centigrade);

So we’ll use this formula Centigrade = (Fahrenheit – 31) / 1.8; to calculate Degree Centigrade by getting Fahrenheit value from the user.

Convert Fahrenheit To Degree Celsius: C Program

Source Code: Convert Fahrenheit To Degree Celsius: C Program

#include < stdio.h >

int main()
{
    float c, fh;

    printf("Enter temperature in Fahrenheit\n");
    scanf("%f", &fh);

    c = (fh - 32) / 1.8;

    printf("Temperature in Degree Celius is %f\n", c);

    return 0;
}

Output 1:
Enter temperature in Fahrenheit
212
Temperature in Degree Celius is 100.000000

Output 2:
Enter temperature in Fahrenheit
113
Temperature in Degree Celius is 45.000000

For list of all c programming interviews / viva question and answers visit: C Programming Interview / Viva Q&A List

For full C programming language free video tutorial list visit:C Programming: Beginner To Advance To Expert