Binary To Octal Converter in C

Here is a simple program that I wrote using C as my programming language that will ask the user to give binary number and then our program will convert the given binary number into octal equivalent.

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Sample Program Output

Program Listing

#include <stdio.h>

#include <math.h>

int Binary_Octal(long long binaryNumber)

{

    int octalNumber = 0, decimalNumber = 0, i = 0;

    while(binaryNumber != 0)

    {

        decimalNumber += (binaryNumber%10) * pow(2,i);

        ++i;

        binaryNumber/=10;

    }

    i = 1;

    while (decimalNumber != 0)

    {

        octalNumber += (decimalNumber % 8) * i;

        decimalNumber /= 8;

        i *= 10;

    }

    return octalNumber;

}

int main()

{

    long long binaryNumber;

    printf("\n==============================");

    printf("\nBinary To Octal Converter in C");

    printf("\n==============================");

    printf("\n\n");

    printf("Give a value in Binary : ");

    scanf("%lld", &binaryNumber);

    printf("\n\n");

    printf("The result is %lld in Binary = %d in Octal Value.", binaryNumber, Binary_Octal(binaryNumber));

    printf("\n\n");

    printf("THANK YOU FOR USING THIS PROGRAM");

    printf("\n\n");

}