Number Base Converter

Convert numbers between different bases (binary, octal, decimal, hexadecimal, and more)

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Quick Conversions

Enter a decimal number (0-9)
Enter a value to see conversion

Common Examples

RGB Color Value

255 (decimal) → 11111111 (binary)

Hex Color

FF (hex) → 255 (decimal)

Binary Number

1010 (binary) → 10 (decimal)

File Permissions

777 (octal) → 1FF (hex)

Number Base Reference

Binary (Base 2)

Digits: 0, 1
Uses: Computer systems, digital electronics
Example: 1010₂ = 10₁₀

Octal (Base 8)

Digits: 0-7
Uses: Unix file permissions, some programming
Example: 777₈ = 511₁₀

Decimal (Base 10)

Digits: 0-9
Uses: Everyday counting, mathematics
Example: 123₁₀ = 123

Hexadecimal (Base 16)

Digits: 0-9, A-F
Uses: Computer memory, colors, programming
Example: FF₁₆ = 255₁₀