How do you figure out what your target weight should be?

So a healthy BMI is between 19 & 24.9 - which for me would be anything under 140 (140 being a BMI of 24.9) so do they use the high end of the 'healthy' bmi scale, or somewhere in the middle?  I am 5'3, btw. 

hey girl friend!!!!!!!!!!!!!! I believe my target weight will be what ever..im comfortable in! im not going to go by what anyone thinks I should be...im sure anything in the bmi range would be a healthy weight.......smouchiessssssssssss

BMI is very inaccurate for some people. I had an electronic assessment of fat and lean mass. My BMI will be 24.9 at 174.5 pounds. I really am big boned! LOL But the tables would put me under 135.

I like that!!!  :)  where did you have the assessment done?