About this tool

A number base system is a way of representing numbers using a specific set of digits. The most common base system used in everyday life is the decimal system, also known as base 10, which uses the digits 0 through 9. Other base systems include binary (base 2), which uses only the digits 0 and 1, and hexadecimal (base 16), which uses the digits 0 through 9 as well as the letters A through F. Each digit in a number has a specific value based on its position and the base of the system. For example, in base 10, the number "42" represents 4 tens and 2 ones, or 4*10+2=42.