C Program to Convert Celsius to Fahrenheit

This program demonstrates how to convert a temperature from Celsius to Fahrenheit using C programming.

Concept Overview

Celsius and Fahrenheit are two common temperature scales. The conversion formula is: F = (C × 9/5) + 32 This program takes user input in Celsius and calculates the corresponding Fahrenheit value.

Program

#include <stdio.h>

int main() {
    float celsius, fahrenheit;

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

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

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

    return 0;
}

Output

Enter temperature in Celsius: 37
37.00 Celsius = 98.60 Fahrenheit

Explanation

• `float celsius, fahrenheit;` – Variables to store temperature values.
• `scanf()` – Reads user input in Celsius.
• `fahrenheit = (celsius * 9 / 5) + 32;` – Converts Celsius to Fahrenheit.
• `printf()` – Displays the converted Fahrenheit temperature with two decimal precision.