Just curious.. who's our biggest loser?
In all fairness my weight was 544 pounds on the day of my WLS. When I was 878 pounds in 2001 I had filled up with fluid from developing sleep apena and not knowing it. I spent 84 days in the hospital and they took off 230 pounds of fluid in the hospital, so because I didn’t have to put any effort into losing that weight I wouldn’t really count that as how much weight I lost from WLS. Alan H
Alan Hartman
Obesity Help. Com Certified Support Group Leader.
OH groups leader of the Men's Locker Room Support Group
Come join the Men’s Locker Room online support group. A place where only us guys can post and talk. www.obesityhelp.com/group/bigal2029_group
Proud to be in the “Before and After photo section in OH Magazine. (September/October 2009) and in the May 2010 issue of 417 Magazine (Losing it)
My official max weight loss was 274 pounds as I dropped down from 479 at my initial consultation to a low of 205. Unofficially, I'm pretty sure I was over 500 since I had gone on a semi-diet prior to my initial consultation....... Either or....... I was one hefty dude prior to WLS.
Boner

I do the tape test and use a Tanita resitance scale. The Tanita scale will give me a different reading every time between 11 - 14%. I average whatever I get with that with the tape test to get a semi-accurate measurement. I don't have the jack to splurge for the hydrostatic test so I'll stick to my +/- 3% error margin. It's probably -3% but who knows.
I do have some loose skin on my belly so the tape test is a challenge for the abdomen but I just lift up the skin roll as if I had PS and do the test around the largest part of the abdomen. It's not exact science but it gives me a pretty good indication.

I posted this awhile back on body fat % tests. Calipers probably would be the least accurate for us because of the loose skin so I don't event bother with that one.
There are a few ways to get your body fat percentage:
1) The easiest and least accurate is an electrical resistance test that some scales perform. It sends and low electrical pulse from head to toe and calculates body fat based on the resistance of the fat to return an electrical signal or something. Tanita is one of the companies that makes the scales. Most weight loss surgeons have one of them.
2) There's also the tape measure test that the military uses. I was ALWAYS taped when I was in the Army even though I wasn't obese. The formula they use for males is:
% body fat = 86.010 x log10(abdomen - neck) - 70.041 x log10(height) + 36.76
Abdomen - Measure abdominal circumference against the skin at the navel (belly button), level and parallel to the floor. Arms are at the sides. Record the measurement at the end of member's normal, relaxed exhalation. Round abdominal measurement down to the nearest ½ inch.
Neck - Measure the neck circumference at a point just below the larynx (Adam's Apple) and perpendicular to the long axis of the neck. Do not place the tape measure over the Adam's Apple. Service member should look straight ahead during measurement, with shoulders down (not hunched). The tape will be as close to horizontal as anatomically feasible (the tape line in the front of the neck should be at the same height as the tape line in the back of the neck). Care should be taken so as not to involve the shoulder/neck muscles (trapezius) in the measurement. Round neck measurement up to the nearest ½ inch.
There's plenty of freeware calculators online as well as some webpages that calculate the formulas.
3) The most accurate body fat percentage test is a hydrostatic water test where you are dunked in a vat or water and weighed. I don't know much about this one but it's supposed to be the most accurate of all the tests available.