Here is a good site where you can do the math yourself. You put in their stats, and it gives you their height and weight percentiles as well as their BMI and tells if the child is under weight, over weight or at a healthy weight. It gives you a wieght range that is healthy for their age and height and gender.
http://www.blubberbuster.com/height_weight.html
Did you all notice the big red warning that this isn't accurate if you are muscular. I think that is a very important note.
Honestly I think there is something wrong with this calculator. One of my best friends has struggled with her son being UNDERWEIGHT since he was 1. He is now almost 5. The doctor has him on a special diet to gain weight. Well according to this calculator he is on the border of being overweight.
I promise....they just have fast metabolisms like I do I think.
It's been determined that DH's genes are at fault--my oldest is overweight (and has a different dad and totally different build). We were told NOT to give them junk food to "fatten" them up. I've just made peace with folding and tacking waist bands so their pants stay up.

