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Octal System (Base 8)

Tool to convert to octal base (base 8) or from octal base. Octal base is mostly used in computer science. Numbers written in octal system use numbers from 0 to 7.

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Octal System (Base 8) -

Tag(s) : Arithmetics

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# Octal System (Base 8)

## From Octal Numbers Converter

### Convert to ASCII code (Text)

⮞ Go to: ASCII Code

## To Octal Numbers Converter

### Convert from ASCII code (Text)

⮞ Go to: ASCII Code

### How to write a number in base 8?

For complete explanations on how to convert from $N_1$ base to $N_2$ base, see the base-N conversion tool.

Example: 123 in base $10$ (also noted $123_{(10)}$) is equal to 173 in base $8$ (also noted $173_{(8)}$)

### How to convert an octal number?

For complete explanations on how to convert from $N_1$ base to $N_2$ base, see the base-N conversion tool.

Example: 123 in base $8$ (also noted $123_{(8)}$) is written 83 in base $10$ (also noted $83_{(10)}$)

### How to recognize octal numbers?

The octal numbers can not have a digit $8$ or $9$.

In computer science, it is usual to display an initial zero in front of an octal number to indicate that they are written in base-8.

Example: $12$ in base $8$ is sometimes written $012$ to indicate that it is an octal number.

Any reference to the number eight is a clue.

## Source code

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