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 ...

Create a table with headings Binary and Hex, or use an existing one. Under the hex heading type =BIN2HEX(A2,5).. A2 is the Binary number you want to convert.