A number system is simply a methodology that includes rules and symbols for counting, or performing operations like addition, subtraction, multiplication, division.

# octal number system

## Octal to Decimal – How to convert octal to Decimal

This post we will learn **how to convert octal to decimal** with Illustrated examples showing the conversion steps from a given octal number to an equivalent decimal number.

## Octal vs Decimal

We aware of the octal number system which uses 8 digits to represent all the numbers and the decimal number system which uses 10 digits to represent all the numbers include fractions.

We will now see the difference between octal and decimal numbers.

## Octal vs Hexadecimal – Difference between Octal & Hexadecimal

We have already studied the octal number system and hexadecimal number system and worked on few solved examples to understand the representation of octal numbers and the representation of hexadecimal numbers.

## Decimal to Octal number

Decimal to octal conversion can be performed using multiple methods. Some methods are more widely used than the others.

In earlier post, we have seen the procedure for converting a given decimal number to its equivalent binary number.

## Octal to binary conversion method with example

In this post, we will learn the method used to convert a given integer octal to binary number