Binary Hex Octal Converter

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Convert numbers between Binary (base 2), Octal (base 8), Decimal (base 10), and Hexadecimal (base 16) in real-time. Simply type in any input box to automatically update the other bases.

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Interactive Quad-Converter

Examples:

Base Systems Reference Table

System Name Base Value Allowed Characters Example Representation
Binary Base 2 0, 1 11010101
Octal Base 8 0, 1, 2, 3, 4, 5, 6, 7 325
Decimal Base 10 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 213
Hexadecimal Base 16 0-9, A-F (a-f) D5
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