Binary Converter

Convert between decimal, binary, hexadecimal, octal, and ASCII. Perfect for programming, computer science, and digital systems.

Input & Convert

Enter value and select input type

Number Systems Guide

Decimal (Base 10)

Uses digits 0-9. Most common number system for humans.

Binary (Base 2)

Uses only 0 and 1. Foundation of all computer systems.

Hexadecimal (Base 16)

Uses 0-9 and A-F. Common in programming and color codes.

Octal (Base 8)

Uses digits 0-7. Historical use in computer systems.

Common Applications:

  • Computer programming
  • Digital electronics
  • Network addressing
  • Color code conversion
  • Memory addressing
  • Data encoding
  • Cryptography
  • Computer science education