I'm 5'1'' and I've decided if I do ever have kids I want them to be massive. 6' and up. ^_^

I want my sons and daughters to all be ridiculous giants who can then retrieve things for me from the top shelf in the cereal aisle because they always put what I want at the top, bastards.

In all seriousness, anywhere from 4'11'' - 6'6'' is pretty normal to me.