Number Base Converter
Convert numbers between binary, octal, decimal, hexadecimal, and any base up to 36. Shows bit groups, byte count, and integer type ranges.
Conversions
2Binary (Base 2)—
8Octal (Base 8)—
10Decimal (Base 10)—
16Hexadecimal (Base 16)—
Custom base—
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Number Base Converter
This tool converts integers between any number base from 2 to 36. It supports binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16), and any custom base. Binary output is shown grouped into 4-bit nibbles for easy reading, with 8/16/32/64-bit padded representations.
Supported Bases
- Base 2 (Binary) — digits: 0-1
- Base 8 (Octal) — digits: 0-7
- Base 10 (Decimal) — digits: 0-9
- Base 16 (Hexadecimal) — digits: 0-9, A-F
- Base 3 through Base 36 — custom base support
Got Questions? We have you covered
Select 'Base 10 (Decimal)' as the input base and type your number. The binary (base 2) result appears instantly in the output table.
Hexadecimal conventionally uses uppercase A–F in computing contexts (e.g. memory addresses, color codes). The tool outputs uppercase hex by default.
A nibble is 4 binary digits (bits). Grouping binary into nibbles (e.g. 0101 0110 instead of 01010110) makes it much easier to read and convert to hex mentally.
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