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Number base converter
Convert between binary, octal, decimal, and hexadecimal instantly. 32-bit binary view included.
Frequently asked questions
What bases can I convert between?
Binary, octal, decimal, and hexadecimal are built in, plus a custom base from 2 to 36.
Is there a maximum number?
The tool uses JavaScript number precision, safe up to 2^53. Use a BigInt utility for larger values.
Why is the binary padded to 32 bits?
Padding into nibbles makes flags and bitmasks easier to read. Leading zeros do not change the value.