The following are the standard height, weight and head circumference of male and female infants at one year and six months. Boy height
73.6-92.4, average 82.7cm. Boy weight
8.13-15.75, average 11.29 kg Boys' head circumference
43.7-51.6, average 47.6cm Girls' height
72.8-91.0, average 81.5cm Girls' weight
7.79-14.90, average 10.65kg Girls' head circumference
42.8-50.5 average 46.4cm