additional dive gear you carry (cameras, reels, lights, etc)

type and size of tank (you will need more weight for aluminum tanks)

Body Weight Rule Water Type - Fresh water will need less weight than salt Fresh Salt Fresh - subtract 4-7 lbs, depending on body weight Dive Skin Yes No Add 1-4 lbs Thin (3 mm) Wetsuit or Shorty Yes No Add 5% of your body weight Medium (5 mm) Two-Piece Wetsuit Yes No Add 10% of your body weight Cold Water (7 mm) Two-Piece Wetsuit with Hood and Boots Yes No Add 10% of your body weight, plus 3-5 lbs Neoprene Dry Suit Yes No Add 10% of your body weight, plus 7-10 lbs Shell style Dry Suit using light weight nonfoam underwear Yes No Add 10% of your body weight, plus 3-5 lbs Shell-style Dry Suit using heavy-weight or foam underwear Yes No Add 10% of your body weight, plus 7-14 lbs Tank Material - Aluminum will need more weight than Steel Aluminum Steel Add 5 lbs if using an Aluminum 80 Lower Range Upper Range