C++ Program to Convert Decimal Number to Binary

In this program, you'll learn to convert Decimal number to Binary number system.

Decimal to binary in C: We can convert any decimal number (base-10 (0 to 9)) into binary number(base-2 (0 or 1)) by c program.

Decimal number is a base 10 number, there are total 10 digits between 0 to 9. Any combination of digits is decimal number such as 23, 445, 132, 0, 2 etc.

Binary number is a base 2 number contains only 2 digits either 0 or 1. Any combination of 0 and 1 is binary number such as 1001, 101, 11111, 101010 etc.

Source Code

#include <iostream>
using namespace std;

int main()
{
    int dec, i;
    long bin = 0;
    cout<<"Enter the decimal number: ";
    cin>> dec;

    while(dec > 0)
    {
        bin = (bin * 10) + dec % 2;
        dec = dec / 2;
    }
    cout<<"Binary Equivalent is: "<< bin;
    return 0;
}