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Number Base Converter

Convert numbers between different bases: binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16).

Binary (Base 2)

0-1

Octal (Base 8)

0-7

Decimal (Base 10)

0-9

Hexadecimal (Base 16)

0-9, A-F

Quick Examples

Base Conversion Reference

Common Prefixes

0b - Binary (e.g., 0b1010)
0o - Octal (e.g., 0o755)
0x - Hexadecimal (e.g., 0xFF)

Common Uses

Binary: Low-level programming, flags
Octal: Unix file permissions
Hex: Colors, memory addresses