🔢 Number Base Converter

Convert a number between binary, octal, decimal, hexadecimal or any base from 2 to 36. Arbitrary-precision arithmetic means very large values convert exactly, with no floating-point rounding.

Value

From base

💡 Tip: prefixes are understood automatically — 0x for hex, 0b for binary and 0o for octal. Underscores and spaces are ignored, so 1010_1010 works fine.