C++ Exercises: Convert temperature in Celsius to Fahrenheit

Last update on August 11 2025 12:58:30 (UTC/GMT +8 hours)

Celsius to Fahrenheit Conversion

Write a C++ program to convert temperature in Celsius to Fahrenheit.

Visual Presentation:

C++ Exercises: Convert temperature in Celsius to Fahrenheit

Sample Solution:

C++ Code :

#include <iostream> // Including the input-output stream header file

using namespace std; // Using the standard namespace

int main() // Start of the main function
{
    float frh, cel; // Declaring floating-point variables for Fahrenheit and Celsius temperatures

    cout << "\n\n Convert temperature in Celsius to Fahrenheit :\n"; // Outputting a message indicating temperature conversion
    cout << "---------------------------------------------------\n"; // Outputting a separator line

    cout << " Input the temperature in Celsius : "; // Prompting the user to input the temperature in Celsius
    cin >> cel; // Taking input for the Celsius temperature from the user

    frh = (cel * 9.0) / 5.0 + 32; // Converting Celsius to Fahrenheit using the formula: (Celsius * 9/5) + 32

    cout << " The temperature in Celsius    : " << cel << endl; // Displaying the input temperature in Celsius
    cout << " The temperature in Fahrenheit : " << frh << endl; // Displaying the converted temperature in Fahrenheit
    cout << endl; // Outputting a blank line for better readability

    return 0; // Returning 0 to indicate successful program execution
} // End of the main function

Sample Output:

 Convert temperature in Celsius to Fahrenheit :                        
---------------------------------------------------                    
 Input the temperature in Celsius : 35                                 
 The temperature in Celsius    : 35                                    
 The temperature in Fahrenheit : 95

Flowchart:

For more Practice: Solve these Related Problems:

Write a C++ program to convert a temperature from Celsius to Fahrenheit and then back to Celsius to check for consistency.
Write a C++ program that accepts a temperature in Celsius, converts it to Fahrenheit, and prints both values with appropriate labels.
Write a C++ program to convert Celsius to Fahrenheit using a function and then display the result in a formatted table.
Write a C++ program that converts a list of Celsius temperatures to Fahrenheit and prints the conversion in a loop.

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C++ Code Editor:

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