Converters
Binary / Hex / Decimal Converter
Convert instantly between binary, octal, decimal and hexadecimal.
How this binary / hex / decimal converter works
The binary / hex / decimal converter takes the numbers you enter and applies a standard formula for this kind of calculation, showing the result instantly with no page reload. Convert instantly between binary, octal, decimal and hexadecimal.
Everything runs client-side in JavaScript, so your inputs never leave your device — there's no server, no account and no tracking involved in getting your answer.
Frequently asked questions
Each field only accepts digits valid for its base — binary accepts 0–1, octal 0–7, hex 0–9 and A–F. An invalid character clears the other fields until the input is valid again.