Number Base Converter

Convert numbers between different number systems: binary, decimal, hexadecimal, and octal.

Input Number:

DECIMAL Base 10
0
BINARY Base 2
0
HEX Base 16
0
OCTAL Base 8
0

Binary Visualization

8-bit Binary Representation
MSB (128) LSB (1)

Number Systems

Decimal (Base 10)

Uses digits 0-9. Most common number system.

Binary (Base 2)

Uses only 0 and 1. Foundation of digital systems.

Hexadecimal (Base 16)

Uses 0-9 and A-F. Compact representation of binary.

Octal (Base 8)

Uses digits 0-7. Groups binary digits in threes.

Quick Examples

42₁₀ = 101010₂ = 2A₁₆ = 52₈
255₁₀ = 11111111₂ = FF₁₆ = 377₈
16₁₀ = 10000₂ = 10₁₆ = 20₈
100₁₀ = 1100100₂ = 64₁₆ = 144₈