🔟 Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal.
What is a Number Base Converter?
Convert numbers between decimal, binary, hex, and octal systems for computing and programming.
Standard Base-N logicExample
📌 Example Calculation
Decimal 255 = Hex FF = Binary 11111111.
Frequently Asked Questions
The calculator applies the formula and assumptions explained on this page to the values you enter. Convert numbers between binary, octal, decimal, and hexadecimal. Use our free number base converter online — instant results, no sign-up.
The arithmetic follows the displayed method, but accuracy depends on your inputs, units, assumptions, and rounding. Confirm important decisions with an authoritative source or qualified professional.
No. The calculation runs in your browser and does not require an account. Avoid sharing a prefilled result link if its inputs are sensitive.