C++ Exercises: Converts kilometers per hour to miles per hour

Last update on August 11 2025 12:58:14 (UTC/GMT +8 hours)

Kilometers to Miles Conversion

Write a C++ program that converts kilometers per hour to miles per hour.

Visual Presentation:

C++ Exercises: Converts kilometers per hour to miles per hour

Sample Solution:

C++ Code :

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

using namespace std; // Using the standard namespace

int main() // Start of the main function
{
    float kmph, miph; // Declaring floating-point variables for kilometers per hour and miles per hour

    cout << "\n\n Convert kilometers per hour to miles per hour :\n"; // Displaying the purpose of the program
    cout << "----------------------------------------------------\n";

    cout << " Input the distance in kilometer : "; // Prompting the user to input distance in kilometers
    cin >> kmph; // Taking input of distance in kilometers from the user

    miph = (kmph * 0.6213712); // Converting kilometers per hour to miles per hour using the conversion factor
    // Displaying the converted values
    cout << " The " << kmph << " Km./hr. means " << miph << " Miles/hr." << endl;

    cout << endl; // Displaying an empty line for better readability

    return 0; // Returning 0 to indicate successful program execution
}

Sample Output:

 Convert kilometers per hour to miles per hour :                       
----------------------------------------------------                   
 Input the distance in kilometer : 5                                   
 The 5 Km./hr. means 3.10686 Miles/hr.

Flowchart:

For more Practice: Solve these Related Problems:

Write a C++ program that converts kilometers per hour to miles per hour using user-defined functions and error-checks negative inputs.
Write a C++ program to convert a list of speeds from kilometers per hour to miles per hour, formatting the output in a right-aligned table.
Write a C++ program that converts kilometers per hour to miles per hour and then determines whether the speed exceeds a given threshold.
Write a C++ program that reads speeds in kilometers per hour from a file, converts each to miles per hour, and displays the results with proper formatting.

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