Bin / Oct / Dec / Hex

Number Base Converter

Convert binary, octal, decimal, hexadecimal, and custom bases from 2 to 36 with BigInt precision.

Base conversion

Binary (Base 2)

Octal (Base 8)

Decimal (Base 10)

Hexadecimal (Base 16)

Custom base (2-36) Custom base result

Enter a value in any field to update the other bases; prefix negative values with -.

Calculates bit length, byte usage, and powers of two from the absolute value.

Click any row to copy its decimal value.

Enter an integer in one base to update the other representations, or choose a custom base from 2 to 36.

Does the converter support fractions?

This tool uses BigInt for integer conversion, including large and negative values. Fractional representations are not supported.