Number Base Converter

Convert numbers between binary, octal, decimal and hexadecimal, with support for very large numbers.

Binary (base 2)

Octal (base 8)

Decimal (base 10)

Hexadecimal (base 16)

Frequently asked questions

Is there a size limit?

There is no practical limit: arbitrary-precision integers are used, so very large numbers convert without losing precision.

Are negative or decimal numbers supported?

Negative integers are supported with a minus sign. Numbers with decimals are not.

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