Convert Degree Celsius To Fahrenheit: C Program

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

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Convert Fahrenheit To Degree Celsius: C Program

Formula to Convert Celsius To Fahrenheit

Fahrenheit = (Centigrade * (9/5)) + 32;
But in C programming, any number divided by an integer number will return integer value. So 9/5 will give 1 and not 1.8

So we need to be careful while doing division operation in C. To solve this issue we can write following formula in C program to convert degree celsius to Fahrenheit.

Fahrenheit = (Centigrade * (9/5.0)) + 32;
OR
Fahrenheit = (Centigrade * 1.8) + 32;

Convert Degree Celsius To Fahrenheit: C Program

Source Code: Convert Degree Celsius To Fahrenheit: C Program

#include < stdio.h >

int main()
{
    float c, fh;

    printf("Enter temperature in Centigrade\n");
    scanf("%f", &c);

    fh = (c * 1.8) + 32;

    printf("Temperature in Fahrenheit is %f\n", fh);

    return 0;
}

Output 1:
Enter temperature in Centigrade
100
Temperature in Fahrenheit is 212.000000

Output 2:
Enter temperature in Centigrade
45
Temperature in Fahrenheit is 113.000000

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