How much does he weigh at he various heights, 10ft, 20ft, 30ft, etc?

I don't know the answer, but I'm kinda interested in finding out.

Over 9000

@jake_fury: Assuming his proportions and density stay consistent as he grows, he would be 866 pounds at 10 feet, about 13,500 pounds at 25 feet (his most common height), and 866,000 pounds at 100 feet (his maximum height). Of course, it's possible (I'd say likely even, given the physical strain that growing places on Pym's body) that the Pym Particles don't quite give even results, so that he's not quite a dense at giant size as he is at his normal size.

It all depends on his height.