Converting 10101101 to Decimal: Multiplying Each Column and Then Adding Them Together

The process is indeed simple, as long as you remember all the powers of 2! When you're working with IP addressing, you'll need to memorize all the powers of 2 up through 2⁸, or 256. (The lowest powers of 2 are listed in Table B-5 later in this appendix.) The basic algorithm to convert binary to decimal can be summarized as follows: