C Program to Convert Octal to Binary1 min read

In this tutorial, we will write a C program to convert an octal number into binary using a while loop. Before that, you must have knowledge of the following topics in C.

Binary number

The binary numbers are based on 0 and 1, so it is a base 2 number. They are the combination of 0 and 1. For example, 1001, 110101, etc.

Octal number

The octal numbers are the numbers with base 8 and use the digits 0 to 7. Example: 8 in decimal is represented as 10 in octal, 25 as 31, and so on.

Example:

Input: 51
Output: 101001

Let us go through a program for the Octal to Binary Conversion in C.


C Program to Convert Octal to Binary

Source code: convert octal number to binary number using function

Output:

Enter an octal number: 51
Octal Binary Value: 101001


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