Toollio

Number Base Converter

Convert numbers between binary, octal, decimal, and hex bases.

Enter a value in any base to instantly sync and calculate other values. Natively supports large numbers.

About this tool

Computers internally represent all data in binary (base 2), but programmers often work with hexadecimal (base 16) for memory addresses and color codes, or octal (base 8) in Unix file permissions. This converter lets you enter a number in any base and instantly see its equivalent in all other bases. It supports arbitrarily large integers.