Char Math is a simple tool for developers needing to convert from and to ASCII, binary, decimal, and hexadecimal. Write or copy/paste any type of string into the corresponding format - the conversion will happen in realtime. From 4-bit to 32-bit conversion supported. Table reference in all the four formats (ascii, decimal, binary, and hexadecimal) using all the available string encoding available, from character 0 to 255.