Convert bases 2,8,10,16 and custom.. Number Base Converter is a free online tool from the ToolsRift Math Calculators collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Enter a number and its current base, then read the equivalent in binary, octal, decimal, hexadecimal or a custom base.
Binary (2), octal (8), decimal (10), hexadecimal (16) and any custom base from 2 to 36.
It uses letters A–F for 10–15, so hex FF equals 255 in decimal.
Yes — enter a value in any base and it is converted to all the others in one step.