- Conversion between two positional numeral systems
This calculator converts number from one numeral system to another, given both system's bases

This calculator supports common mathematical operations over binary numbers

- Conversion of decimal number to other notations
This calculator converts decimal number to binary, hexadecimal and octal notations

- Simple math in any numeral system
This online calculator supports simple math (addition, subtraction, division, multiplication and power) for numbers expressed in any numeral system - binary, octal, hexadecimal, from the base 2 to base 36