my daugther is 9 months. her last apt at 7 mo's she was over 18 lbs. & 26 3/4 inches long (I would have to look in her book for exact weight, I forget) I got on the scale with her the other day and w/out her to see about what she weighs now and she weighed just over 21 lbs. She was born 7 lbs 12 oz. I can't wait for her next checkup in May!