Base Converter

Convert numbers between any numeral systems from binary (base-2) to base-36.

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Binary
11111111
Base 2
Octal
377
Base 8
Decimal
255
Base 10
Hexadecimal
FF
Base 16

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Understanding Number Bases

Number bases are fundamental to computing. While humans typically use base-10 (decimal), computers operate in base-2 (binary). Hexadecimal (base-16) provides a compact way to represent binary values.

Common Bases in Computing

  • Binary (Base-2): Used by all digital computers. Each digit is a bit.
  • Octal (Base-8): Historically used in Unix systems for file permissions.
  • Decimal (Base-10): The standard number system used in everyday life.
  • Hexadecimal (Base-16): Used in memory addresses, color codes (#RRGGBB), and UUIDs.

Frequently Asked Questions

A number base (or radix) is the number of unique digits used to represent numbers in a positional numeral system. Base-10 (decimal) uses 0-9. Base-2 (binary) uses 0-1. Base-16 (hexadecimal) uses 0-9 and A-F.

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