Octal to Binary Conversion in C Program

✅ Octal to Binary Conversion in C

#include<stdio.h>

int main()
{
    int octal, remainder;

    printf("Enter an octal number: ");
    scanf("%d", &octal);

    printf("Binary equivalent: ");

    while(octal != 0)
    {
        remainder = octal % 10;

        switch(remainder)
        {
            case 0: printf("000 "); break;
            case 1: printf("001 "); break;
            case 2: printf("010 "); break;
            case 3: printf("011 "); break;
            case 4: printf("100 "); break;
            case 5: printf("101 "); break;
            case 6: printf("110 "); break;
            case 7: printf("111 "); break;
            default: printf("Invalid Octal Digit!");
        }

        octal = octal / 10;
    }

    return 0;
}
  

📘 Explanation:

This C program converts an octal number into its binary equivalent using switch case logic.

• Each octal digit (0–7) is converted into a 3-bit binary number.
• The program extracts digits using modulus operator (% 10).
• Switch case is used to map each digit into binary form.
• The loop continues until the number becomes 0.

This is a simple and efficient number system conversion method.

🧾 Sample Output:

Enter an octal number:
17
Binary equivalent: 111 001
  

🔑 Keywords:

octal to binary in C, switch case program, number system conversion, binary conversion logic, C programming basics, C examples

📌 Hashtags:

#CProgramming #OctalToBinary #SwitchCase #NumberSystem #LogicInC #1printf