I recently bought a new scale that measures weight PLUS body fat % and a few other measurements, etc.
BMI is pretty much useless from all the reading I am seeing so I tend to ignore it.
Body FAT % on the other hand is a pretty good indicator of good "weight" for you!
The only TRULY accurate test is where they dunk you in a big tank, $$ and PITA to find, schedule, etc. But the bio-ompendence stuff is the second highest rated test for accuracy.
The home versions are "ok" (compared to what my local hospital has) but at least gives you a good starting point.
This has the most interesting chart I can find!! My measurement on my home scale/device has been 26.3-27.2% (201 to 203ish pounds)
http://www.builtlean.com/2010/08/03/ideal-body-fat-percentag e-chart/
So that puts me at approx 148 pounds of "Lean Weight" (Muscle, Bones, etc, everything but fat)
BMI scale btw is like 29-30 for me (normal 18.5 to 24.5 which translates to 128lbs to 169lbs)
http://www.nhlbi.nih.gov/guidelines/obesity/bmi_tbl.htm
If we start with 148 lbs of lean, 169lbs (the top end of normal in BMI) would only be 12.4% of body fat!! According to the BODY FAT charts the top end of BMI would put me in the same range as Athletes (2 steps BELOW normal!!)
So I guess what I am trying to say here is this... do a bit of research on Body Fat % and come up with what is truly "healthy" for you and your body!!
What is cool is that for my age group, 41, I am now NORMAL!!! (Top end of normal...) at 201 lbs, 26-27% body fat %.
Dittos on all the above stuff, but get some TOOLS for your arguments about still losing weight. I also would "consider" the fact that we are likely carrying around 10-20lbs of extra skin that throws off these ratios further. (See the post about the plastic surgery guy that lost 25lbs!!!?)
Ok, last link.. the scale I bought because I really did want to know and start measuring this stuff so I would have the tools/knowledge!!
http://www.amazon.com/gp/product/B001IV61J4/ref=oh_details_o 01_s01_i00