canadababy (704.1 days ago) My 13month old is 20lbs 13oz and 29 1/2 inches long. Just under `average` for her age. I googled percentile calculator when I was looking for this info a while ago, can`t remember what sites I found though..
gavinsmum (704.1 days ago) my 16 month old is 31 inches and 21.3 lbs. He is just under 50th for hight and 50th for weight.
JustTha5ofUs (704.1 days ago) you can do it here, under forums and info
http://www.i-am-pregnant.com/encyclopedia/Babies/Weight-of-your-child, then go on the right side and growth chart boy or girl. my sons 98th in height and 70 in weight
domsmom2009 (704.1 days ago) baby center has a great percentile calculator :)