Number Base Converter

Convert numbers between bases (2, 8, 10, 16)

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Binary (Base 2)

11111111

Octal (Base 8)

377

Decimal (Base 10)

255

Hexadecimal (Base 16)

FF

Custom Base Conversion

Common Number Bases

Binary (2):0, 1Octal (8):0-7Decimal (10):0-9Hexadecimal (16):0-9, A-F

About Number Base Converter

Convert numbers between bases (2, 8, 10, 16)

Use this free online math tools tool to work faster without installing extra software. The interface is built for quick input, clear output, and straightforward results on desktop and mobile devices.

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This tool runs in your browser whenever possible, which keeps your inputs private and reduces unnecessary round-trips to the server.