I took Jack in for his 18 month drs. check yesterday. He weighs between 24-25 lbs, and is 32.5 inches tall. Both are between the 50-75th percentile for his age... pretty good. He also stacked blocks like a champ for the nurse. She asked me tons of questions about him and his development and the whole time he kept trying to open her drawers and grab her stamp pad... not sure how impressed she was :o) We think hes pretty great though!