I have found a rather tidy correlation between circumference around belly button and the 'look' that I like. The look also corresponds fairly neatly with a bodyweight too. But then I've been at this for awhile. IMO, more important than achieving a body composition goal is HOW YOU GOT THERE. Did you get there in a manner in which you will likely, easily sustain ? Did you get there via prodigious amounts of exercise ? Why ? Did you get there depriving yourself of the foods you truly enjoy ? What were you thinking ?