Number Base Converter

Convert numbers between binary, octal, decimal, hex, Base32/36/58/62.

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Type into any base and the others update instantly.

Binary 2 Digits 0-1

Octal 8 Digits 0-7

Decimal 10 Digits 0-9

Hexadecimal 16 Digits 0-9 and letters A-F

Base32 32 Crockford alphabet, letters I, L, O, U excluded

Base36 36 Digits 0-9 and letters A-Z

Base58 58 Bitcoin alphabet, characters 0, O, I, l excluded

Base62 62 Digits, then uppercase, then lowercase

Pad binary to

About Number Base Converter

Convert numbers between binary, octal, decimal, hex, Base32/36/58/62.

The work happens in your browser: what you paste is never sent to a server, and no account is needed.

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