Binary (2)
-
Octal (8)
-
Decimal (10)
-
Hexadecimal (16)
-
-
How it works
Enter a number and select its current base. The tool instantly converts it to binary, octal, decimal, hexadecimal, and any custom base (2-36). Fractional parts (e.g. 3.14) are supported with up to 20 digits of precision. Digits beyond 9 use letters A-Z.