Knowledge

Deutsche Version

10/21/2006
 Online Converter for Decimal/Octal Numerals

This web page allows you to convert a decimal numeral into an octal numeral and vice versa.

The octal system is a numeral system with a base of 8 using the digits 0-7. As one octal digit can represent a group of three binary numerals/three bits (the binary numeral 111 is equivalent to the octal numeral 7), octal numerals are used in computing to make binary numerals better readable for humans. For example, you need three bits to define file permissions of a user class under Unix. But instead of using three binary digits, the octal representation of the three bits is used -- so only one octal digit is needed.

The following tool allows you to convert decimal numerals not greater than 2251799813685247 and octal numerals not greater than 77777777777777777:

decimal:   octal:
 
 

Note: The converter is released under the GNU General Public License (GPL) and requires JavaScript to be enabled in your browser.

See Also

External Links

  • More information about the octal numeral system (Wikipedia)

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