Program to Convert Celsius to Fahrenheit

Code:

#include <stdio.h>

int main() {
    float celsius, fahrenheit;

    // Asking user to input temperature in Celsius
    printf("Enter temperature in Celsius: ");
    scanf("%f", &celsius);

    // Converting to Fahrenheit
    fahrenheit = (celsius * 9 / 5) + 32;

    printf("%.2f Celsius = %.2f Fahrenheit\n", celsius, fahrenheit);

    return 0;
}

Explanation:

The program is designed to take a temperature input in Celsius from the user and convert it to Fahrenheit using the formula:

Breakdown of the Code:

#include 

• This line includes the standard input/output library, which allows the program to display output to the screen and accept input from the user.

int main()

• This defines the main function, where the execution of the program starts.

    float celsius, fahrenheit;

• Two floating-point variables are declared:
  • celsius: to store the temperature input by the user in Celsius.
  • fahrenheit: to store the converted Fahrenheit temperature.

    printf("Enter temperature in Celsius: ");
    scanf("%f", &celsius);

• The program prompts the user to enter a temperature in Celsius and stores the input in the variable celsius.

    fahrenheit = (celsius * 9 / 5) + 32;

• This line converts the temperature from Celsius to Fahrenheit using the standard conversion formula.
  • First, the Celsius value is multiplied by 9 and divided by 5 to scale it to the Fahrenheit scale.
  • Then, 32 is added to account for the difference between the two temperature scales’ zero points.

    printf("%.2f Celsius = %.2f Fahrenheit\n", celsius, fahrenheit);

• The program displays the Celsius value entered by the user and its corresponding Fahrenheit equivalent. The values are formatted to two decimal places for precision.

    return 0;

• This indicates that the program executed successfully and is returning a value of 0.

Sample Input/Output:

Input:

Enter temperature in Celsius: 25

Output:

25.00 Celsius = 77.00 Fahrenheit

Summary:

The program reads a temperature in Celsius, converts it to Fahrenheit using a mathematical formula, and displays the result to the user. It demonstrates basic arithmetic and input/output operations in C programming.

Test here: