Number Base Converter
Convert integers between binary, octal, decimal and hexadecimal. Handles arbitrarily large integers.
Input
Result
Enter a value to convert.
About number bases
Binary (base 2) is used by computers, octal (base 8) and hexadecimal (base 16) are compact ways to write binary. Large integers are handled with arbitrary precision, so you can convert values far beyond 64 bits.