http://www.gts2.net/gtsconverter.html

Not sure how many folks have seen this before, but it's a damn fine utility...  Just punch in your woman's height, measurements, weight, an lift-strength, plus the target siza of your giantess... and it spits out a whole host of other numbers, everything from how big the average man would seem to look from her POV, to... well, more intimate measurements, like breast weight and vaginal depth.

Quite a handy little toy for GTS writers, erotic or not...