C Program to Convert Decimal to Binary

✅ C Program to Convert Decimal Number to Binary

#include <stdio.h>

int main() {
    int num, binary[32], i = 0;

    printf("Enter a decimal number: ");
    scanf("%d", &num);

    if (num == 0) {
        printf("Binary: 0\n");
        return 0;
    }

    while (num > 0) {
        binary[i] = num % 2;   // store remainder (0 or 1)
        num = num / 2;         // reduce number
        i++;
    }

    printf("Binary: ");
    for (int j = i - 1; j >= 0; j--) {  // print in reverse
        printf("%d", binary[j]);
    }
    printf("\n");

    return 0;
}
  

📘 Explanation:

This C program converts a decimal number into its binary representation:

• We repeatedly divide the number by 2 and store the remainders (0 or 1).
• These remainders are stored in an array.
• Finally, we print the array in reverse order to get the correct binary format.
• If the number is 0, the output is directly 0.

🧾 Sample Output:

Enter a decimal number: 10
Binary: 1010

Enter a decimal number: 25
Binary: 11001
  

🔑 Keywords:

C program decimal to binary, decimal to binary conversion, division by 2 method in C, binary number C program, beginner C examples

📌 Hashtags:

#CProgramming #BinaryConversion #DecimalToBinary #CExamples #CodingForBeginners

🔍 Search Description:

This C program converts a decimal number into binary using division by 2 method. It stores remainders in an array and prints them in reverse order with example outputs.