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Number Base Converter

Convert between binary, octal, decimal, and hexadecimal.

Number

Allowed characters: 0 - 9Prefixes 0b, 0o, 0x are recognized.

From base

To base

Result

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About this calculator

Convert numbers between bases 2 and 36. Supports negative numbers and recognizes common prefixes like 0b (binary), 0o (octal), and 0x (hex). The input is validated against the selected base.