Everybody has a price, and apparently a cost. Human organs, it should go without saying, aren’t traded legally in the white market — where the high-powered business deals and Wal-Mart sales happen every day. They’re traded instead on the black market, and they aren’t cheap.

It turns out the human body is quite valuable: Whatever their reasons, some people stand a lot to gain from spending $157,000 on a pair of kidneys, $5,366 on bones and ligaments, and nearly $9 per square inch of human skin. (In case you were wondering, the human body contains approximately 3,168 square inches of skin, making the largest organ in the body worth a relatively paltry $28,322.)

Of course, the black market isn’t the only place where people have an interest in purchasing parts of their own species. Renowned German anatomist Professor Gunther von Hagens is the brain behind Body Worlds, a museum exhibition dedicated to showcasing the human body at each layer, from all different perspectives. When he began constructing the exhibition, von Hagens reportedly spent $1,500 on a sliver of a human head, $3,600 on a pair of smoker’s lungs, and $185 for a slice of a human hand.

Check out the infographic below to learn more about how much the human body costs.

How much are we worth