C Program to Calculate Fahrenheit to Celsius and Vice-versa.

Fahrenheit to Celsius is a temperature conversion formula used to convert temperatures measured in degrees Fahrenheit (°F) to degrees Celsius (°C) and vice-versa. In this article, we are going to learn how to write a C programming to perform this conversion.

Fahrenheit to Celsius Conversion:

To convert Fahrenheit to Celsius, subtract 32 from the Fahrenheit temperature and then multiply the result by 5/9. The formula is as follows:

Celsius = (Fahrenheit - 32) * 5/9

For example, if the user inputs 68 degrees Fahrenheit, the conversion would be:

Celsius = (68 - 32) * 5/9 = 20 degrees Celsius.

Celsius to Fahrenheit Conversion:

To convert Celsius to Fahrenheit, multiply the Celsius temperature by 9/5 and then add 32. The formula is as follows:

Fahrenheit = (Celsius * 9/5) + 32

For example, if the user inputs 25 degrees Celsius, the conversion would be:

Fahrenheit = (25 * 9/5) + 32 = 77 degrees Fahrenheit.

C program to convert temperature from Fahrenheit to Celsius.

//C program to calculate celsius from fahrenheit
#include <stdio.h>

int main() {
    float fahrenheit, celsius;

    // Input the temperature in Fahrenheit
    printf("Enter the temperature: ");
    scanf("%f", &fahrenheit);

    // Fahrenheit to Celsius conversion
    celsius = (fahrenheit - 32) * 5 / 9;
    printf("%.2f degrees Fahrenheit is equal to %.2f degrees Celsius.\n",

           fahrenheit, celsius);

    return 0;
}

Output:

Enter the temperature: 34
34.00 degrees Fahrenheit is equal to 1.11 degrees Celsius.

Time Complexity: O(1)

Space Complexity: O(1)

C program to convert temperature from Celsius to Fahrenheit.

//C program to calculate fahrenheit from celsius
#include <stdio.h>

int main() {
    float fahrenheit, celsius;

    // Input the temperature in celsius
    printf("Enter the temperature: ");
    scanf("%f", &celsius);

    // Celsius to Fahrenheit conversion
    fahrenheit = (celsius * 9 / 5) + 32;
    printf("%.2f degrees Celsius is equal to %.2f degrees Fahrenheit.\n",

           celsius, fahrenheit);

    return 0;
}