Number Base Converter

Runs locally

Convert numbers between binary, octal, decimal, hexadecimal and any base from 2 to 36.

Number

From base

Binary (2)

Octal (8)

Decimal (10)

Hexadecimal (16)

Enter a number in any base from 2 to 36 and instantly see it in binary, octal, decimal and hexadecimal. Big values are supported exactly thanks to arbitrary-precision integers. Runs entirely in your browser.