the lungs of an adult human have a surface area of about 75 to 100 square meters approximately. The more muscular the human being the chest volume will be more. So a highly active athlete will have larger lungs than a normal non athlete.

what is the size of an average adult lung

Well, it depends on your size and sex as well as lung capacity. Lung size is generally assessed by total lung capacity (TLC) or vital capacity (VC). Your lungs make up one of the largest organs in your body, and they work with your respiratory system to allow you to take in fresh air, get rid of stale air, and even talk. Your lungs are in your chest, and they are so large that they take up most of the space in there. You have two lungs, but they aren't the same size the way your eyes or nostrils are. Instead, the lung on the left side of your body is a bit smaller than the lung on the right. This extra space on the left leaves room for your heart. Most of the chest volume (thoracic cage) is occupied by the lungs. Think of a short man and compare his chest volume to that of a fullback football player. The football player will have larger lungs than the short man (or woman). http://encarta.msn.com/media_461516290_761570316_-1_1/Human_Lungs.html http://www.ask.com/web?q=human%20lungs&o=12572&ef_id=1370:3:b5498751f4adf9dfd3b29b04cc07e1b6_768267805:GbgEztB6B3YAAHyYCXMAAAAO:20071101040110 http://www.lungusa.org/site/pp.asp?c=dvLUK9O0E&b=22576 http://hypertextbook.com/facts/2001/LaurenCalabrese.shtml http://findarticles.com/p/articles/mi_qa4085/is_200401/ai_n9360859 Cool fact: The total surface area of the alveoli (tiny air sacs in the lungs) is the size of a tennis court.

6L - see http://en.wikipedia.org/wiki/Lung_volumes

10-14 inches, they fill out the entire rib cage

http://www.answerbag.com/q_view/42203

There about this big.