So how much would that be? (Friggin' Americans.......) I cannot compute grams/kilograms

There was a huge difference at those sites you listed. 36% 41.6% or 52.8% body fat. Sheesh! Do you think the ones that take actual body measurements are more accurate than those that don't?

It's funny because the one that said 52.8% BF said my lean body mass is 115 pounds. I haven't weighed anywhere near 115 pounds since sixth grade! And I wasn't a fat kid. I went from like 100# soaking wet to 133# as a freshman in high school to 166# my senior year. I was never 115# and I don't aspire to be after 2 kids.