Convert a Hex Number to Octal Number

Convert a Hex Number to Octal Number instantly. Type a hex value like FA3 and get the octal output right away. You can display conversion steps or space out the digits for readability.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log
Total characters: 0
Options
Add space between digits
Show conversion steps

How to Use:

  1. Type a hexadecimal number into the input box for example: FA3.
  2. Use the toggles in the Options box:
    • Add space between digits: Adds spacing between octal digits for clarity.
    • Show conversion steps: Shows how the hex number becomes decimal, then octal.
  3. The output updates live in the right-hand box with a flash animation.
  4. Use Copy Output to copy the result, or Export to File to save it.
  5. Hit Clear All to reset everything.

To convert a saved hex value, upload a .txt, .csv, or .log file using Choose File.

What Convert a Hex Number to Octal Number can do:

This tool lets you convert hex strings directly to base-8 with live feedback. Behind the scenes, the tool converts hex to decimal, then decimal to octal. If enabled, it shows you both steps clearly. You can group the octal digits with spaces or leave them compact. Input sanitization ensures only valid hex characters are processed, and every update triggers a real-time output change with a character counter below the result. It works from both direct input and uploaded files.

Example:

Input:

FA3

Settings: Add space between digits: OFF, Show conversion steps: OFF

Output:17503

With Show Steps ON:

17503

Steps:
Hex FA3 = Decimal 4003
Decimal 4003 = Octal 17503

Hex to Octal Conversion Table:

This table shows how common hexadecimal values convert to their octal equivalents. It’s useful for base conversions in programming, digital electronics, and low-level data manipulation.

Hex NumberOctal ValueExample Use
0A12Single-digit hex
1F37Low byte flag
2A52ASCII asterisk
64144Common boundary
FF377Max unsigned byte
100400New byte range
1A3643Intermediate hex
3E8750Decimal 1000
7D01720Decimal 2000
FA37643Hex sample input

Common Use Cases:

Use Convert a Hex Number to Octal Number when working with base conversions for networking, memory addressing, or educational exercises. It’s great for learners, developers, or anyone needing fast, accurate transformations between number systems. The step mode is especially helpful for understanding the conversion logic.

Useful Tools & Suggestions:

Need to take a detour on the way to octal? Convert a Hex Number to Binary Number is a helpful step since octal and binary pair up neatly. And if you’re wrapping up in standard form, Convert a Hex Number to Decimal Number is always useful to check the final value in plain base 10.

Related Tools