Decimal/Hexadeciml/Binary/Octal Number base converters

This is an arbitrary precision number base converter that can handle big numbers.

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Enter the number to be converted, select the conversion type and hit enter or press calculate.



from to add spaces in result for better readability:




Enter numbers without any prefix. That is: write hex numbers without 0x and octal numbers without leading zeros.


Written by Guido Socher, MIT license