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Number Base Converter (Binary, Octal, Decimal, Hex)
Convert numbers between binary, octal, decimal, hexadecimal and any custom base from 2 to 36.
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About Number Base Converter (Binary, Octal, Decimal, Hex)
Numbers can be written in any positional base, base-2 (binary) for digital logic, base-8 (octal) for file permissions, base-10 (decimal) for everyday math and base-16 (hexadecimal) for memory addresses and color codes.
This converter takes a value in any base from 2 to 36 and shows it simultaneously in binary, octal, decimal, hex and your chosen custom base. Computation is done with arbitrary-precision BigInt so very large numbers are handled exactly.
Frequently asked questions
How big a number can I convert?
Any integer, the tool uses JavaScript BigInt so there is no precision loss.
Are negative numbers supported?
Yes, prefix with a minus sign. Two's complement representation is not produced because it depends on word size.
Can I convert fractional numbers?
Currently only integers are supported.
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