Binary Converter

About the Binary Number System

The binary (base-2) number system uses only two digits: 0 and 1. It is the foundation of all digital computing, as electronic circuits are either off (0) or on (1).

Each digit position represents a power of 2. For example:

Quick Conversion Guide

• Binary → Decimal: Sum of bit × 2^position values
• Binary → Hex: Group bits into nibbles (4-bit groups), convert each to a hex digit
• Binary → Octal: Group bits into triplets (3-bit groups), convert each to an octal digit

Related Conversion Tools

Explore our other free number conversion tools:

• Binary to Decimal Converter — Dedicated binary to decimal tool
• Binary to Hex Converter — Convert binary to hexadecimal
• Binary to ASCII Converter — Decode binary to text
• Decimal to Binary Converter — Convert decimal to binary
• ASCII to Binary Converter — Encode text as binary
• Hex to Decimal Converter — Convert hex to decimal
• Base Converter — Convert between any base (2–36)

Learn More

• 0x09 Hex to Decimal Guide — Understand hex values in depth
• How to Convert Hex to Decimal — Step-by-step tutorial