Hex to Octal Converter Online

What is Hex to Octal Conversion?

  • Hexadecimal (base-16) to Octal (base-8) numeric system conversion
  • Translates computer-friendly hex values to compact octal representation
  • Commonly used in low-level programming and digital systems debugging
  • Each hexadecimal digit converts to 4 binary bits (nibble), then grouped into 3-bit octal digits

How to Use This Converter

  1. Enter/paste hex values in the input box (supports spaces, commas, or any separators)
  2. Select formatting options:
    • ☑ Add spaces between bytes (e.g., 165 037)
  3. Click Convert to get octal equivalent
  4. Use Copy button to export results or File Input for binary files

Frequently Asked Questions

Why are my octal results 3 digits long?

Each byte (2 hex digits) converts to 3 octal digits (8^3 = 512 ≥ 256 possible byte values). Example: FF → 377

How are invalid characters handled?

Non-hex characters (G-Z, special symbols) are automatically filtered out. Input "1A!3" becomes "1A3".

Can I convert floating-point values?

This tool converts raw hex bytes. For floating-point interpretation, first convert to decimal then to octal.

Why see leading zeros in results?

Leading zeros ensure proper byte alignment. Input "ABC" becomes "0ABC" → 005 274

Need the reverse tool? Convert Octal to Hex →