Base 10 is great for humans, but -- for reasons dealing with the on and off energy states -- computers use a base 2 number system. With base 2, or binary, every digit represents a power of 2 and ...

Just specify the obase (output base) value as 10, the ibase (input base) number as 16 if the starting number of hex, 8 if it’s octal and 2 if it’s binary as in the examples shown below.

Hexadecimal close hexadecimal A number system using 16 symbols from 0-9 and A-F, also known as base 16 and hex., also known as hex, is the third commonly used number system. It has 16 units (0-9 ...