C++ Exercises: Calculate the volume of a cylinder

Last update on August 11 2025 12:58:17 (UTC/GMT +8 hours)

Cylinder Volume

Write a C++ program to calculate the volume of a cylinder.

Visual Presentation:

C++ Exercises: Calculate the volume of a cylinder

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
{
    int rad1, hgt; // Declaring variables to store cylinder's radius and height
    float volcy; // Declaring variable to store the volume of the cylinder

    // Outputting messages to prompt the user to input the radius and height of the cylinder
    cout << "\n\n Calculate the volume of a cylinder :\n";
    cout << "-----------------------------------------\n";
    cout << " Input the radius of the cylinder : ";
    cin >> rad1; // Reading the radius input from the user
    cout << " Input the height of the cylinder : ";
    cin >> hgt; // Reading the height input from the user

    // Calculating the volume of the cylinder using the formula: volume = π * radius^2 * height
    volcy = (3.14 * rad1 * rad1 * hgt);

    // Outputting the calculated volume of the cylinder
    cout << " The volume of a cylinder is : " << volcy << endl;
    cout << endl;

    return 0; // Return statement indicating successful completion of the program
}

Sample Output:

 Calculate the volume of a cylinder :                                  
-----------------------------------------                              
 Input the radius of the cylinder : 4                                  
 Input the height of the cylinder : 8                                  
 The volume of a cylinder is : 401.92

Flowchart:

For more Practice: Solve these Related Problems:

Write a C++ program to calculate the volume of a cylinder using a user-defined function that takes the radius and height as parameters.
Write a C++ program that computes the cylinder volume and then converts the result from cubic centimeters to liters.
Write a C++ program to input the dimensions of a cylinder, calculate its volume, and then print both the volume and the base area.
Write a C++ program that calculates the volume of a cylinder and prints the result along with a visual representation of the cylinder.

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