Alex / LittleToadfrogs August 12, 2010 by: Little Toadfrogs 08/12/2010 0 Comment At 18 months – 25 lbs and 2 oz. (40 percentile) and 33 1/4 inches (80 percentile) (Alex has learned how to take off the diapers with velcro. I bet he took it off at least 10 times while I was trying to talk to the doctor.)