18" XXX FART
Now that I have everyones attention. Continue readiing when your mind is no longer in the gutter.
I went shopping for pants today, got to the store, tried on several pair, and the pair that fit best was the ones with the 56" waist, which is awesome considering the last time i was there I could not fit in the 72" dress pants the largest the carried, and that is a difference of 18".
I also bought some jursey pants today that were 5X and that is 3X's smaller than what I used to buy.