Number Base Converter

The tool supports binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) with quick-select buttons. You can also enter any custom base from 2 to 36, covering all standard numeral systems used in computer science, mathematics, and engineering.

Enter your binary number in the input field and select base 2 as the source. The tool instantly displays the equivalent value in decimal, hexadecimal, and octal. Each binary digit position represents a power of 2, so binary 1010 equals decimal 10 and hex A.

Hexadecimal is a base-16 number system using digits 0-9 and letters A-F. Programmers use hex for CSS color codes, memory addresses, MAC addresses, and encoding binary data compactly. Converting between hex and binary is essential for low-level debugging and network analysis.

Yes. All number base conversions happen entirely in your browser using client-side JavaScript. No data is sent to any server, collected, or stored.

Yes. The tool uses JavaScript BigInt for arbitrary-precision arithmetic, so you can convert numbers of any size without losing accuracy. This is particularly useful for cryptographic hashes, large integer IDs, and scientific calculations that exceed standard 64-bit number limits.