C++ Program to Convert Decimal to Binary

In this tutorial, we will learn to convert a decimal number into binary in C++. Before that, you must have knowledge of the following topics in C++.

The binary numbers are based on 0 and 1, so it is a base 2 number. They are the combination of 0 and 1. For example, 1001, 110101, etc.

These are the numbers with a base 10, which ranges from 0 to 9. These numbers are formed with the combination of 0 to 9 digits such as 24, 345, etc.

Here is the chart where for the equivalent value of decimal and binary numbers.

Now let us go through a program for the conversion of decimal to binary in C++.

The program asks the user to enter a decimal number and using a for loop it calculates the binary value. Lastly, display the equivalent binary value.

#include <iostream>

using namespace std;

int main()

{

int bin[10], deci, i;

cout << "Enter the decimal number: ";

cin >> deci;

for (i = 0; deci > 0; i++)

{

bin[i] = deci % 2;

deci = deci / 2;

}

//Display the converted decimal number

cout << "Binary value: ";

for (i = i - 1; i >= 0; i--)

cout << bin[i];

return 0;

}

Output:

Enter the decimal number: 10 Binary value: 1010

Also, check out a similar program:

C++ Program to Convert Decimal to Binary1 min read