There are a couple different calculations you can use. Here's a good calculator I found. http://www.calculator.net/ideal-weight-calculator.html http://www.calcu

There are a couple different calculations you can use. Here's a good calculator I found. http://www.calculator.net/ideal-weight-calculator.html http://www.calculator.net/ideal-weight-calculator.html It tells me that my correct weight according to BMI is anywhere from 118 to 159. Now, I know if I weight 159lbs, I'd be fat. 118 doesn't seem especially healthy to me either - I'm at my lowest weight ever right now, 128lb, and my clothes are hanging off me like I'm a skeleton. All the other calculations are telling me 134-138 are right for me, which matches my normal weight. I think I'm down right now because I've been weight training and not taking in enough extra calories to gain weight, but if I lose any more weight than this I'm gonna start chugging olive oil or something. No way am I going down to 118.