Octal to Binary Converter


This tool helps you convert numbers between octal (base-8) and binary (base-2).

How to Use This Converter

  • Enter an octal value like 75 to get its binary representation
  • Or input a binary number to convert it into octal

Understanding the Conversion

Each octal digit maps directly to 3 binary bits, making conversion fast and easy:

  • 0 → 000
  • 1 → 001
  • 7 → 111

Example: Convert 758 to binary:

  • 7 → 111
  • 5 → 101

Result: 111101

Why Use Octal and Binary?

Octal and binary are both used for compact and exact digital representations:

  • Octal: More compact than binary, easier to read and write in some systems
  • Binary: Directly represents machine-level data (bits)

This converter is ideal for electronics, computer architecture, and programming tasks involving low-level data.