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Octal Converter Tool

Convert between octal (base-8), decimal (base-10), binary (base-2), and hexadecimal (base-16) number systems.

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1. Enter Octal Value

Unix File Permission (chmod) Preview:
-rwxr-xr-x (Owner: rwx, Group: r-x, Other: r-x)

2. Equivalent Number Base Conversions

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How to Use the Octal Converter Tool

  1. 1
    Enter an octal number (digits 0-7) or choose an alternative input base.
  2. 2
    The converted values in decimal, hex, and binary calculate instantly.
  3. 3
    View Unix file permissions representation (e.g. 755 -> rwxr-xr-x).

Practical Example & Use Case

Common Real-World Scenario

Converting Unix chmod permission numbers like 755 or 644 to binary flags and understanding octal byte offsets.

Technical Notes & Limitations

Browser Engine Architecture

Valid octal digits must be between 0 and 7.

Frequently Asked Questions

What is octal 777 in Unix permissions?

777 gives read, write, and execute permissions to user, group, and others (rwxrwxrwx).