If you're looking for online calculators which give very close approximations of the LBM calculation method for figuring protein intake from the original PP book, try the ones at the Wake Forest Baptist University Medical Center:
http://www.besthealth.com/Health+Calculators/

The Waist-to-hip ratio calculator is exactly the same as the one in the first PP book.

The Protein Calculator, while it requests some slightly different information, ends up being very close to the recommendations from the original PP book. To figure out your frame size, wrap your thumb and middle finger around the wristbone of your opposite hand. If your fingers overlap, you're small-framed. If fingers touch, you're medium framed. If your fingers don't meet, you're large framed.

Hope this helps.