Convert Octal to Decimal in C

Convert Octal to Decimal Program in C

In this types of program we takes a Octal number as input and converts it into Decimal number. To convert Octal to Decimal number first accept Octal as a input then convert into equivalent Decimal number

Steps to Convert Octal to Decimal Number

• Start the decimal result at 0.
• Remove the most significant octal digit (leftmost) and add it to the result.
• If all octal digits have been removed, you are done. Stop.
• Otherwise, multiply the result by 8.
• Go to step 2.

#include<stdio.h>
#include<conio.h>
#include<math.h>

void main()
{
 
    long int octal, decimal = 0;
    int i = 0;
    clrscr();
    printf("Please Enter any Octal Number: ");
    scanf("%ld", &octal);
    while (octal != 0)
    {
        decimal =  decimal +(octal % 10)* pow(8, i++);
        octal = octal / 10;
    }
    printf("Equivalent decimal value: %ld",decimal);
 
    getch(); 
}

Please Enter any Octal Number: 82
Equivalent Decimal Value is: 66

Please Enter any Octal Number: 16
Equivalent Decimal Value is: 14