#asktheexpert my baby harshith prabhas 7 months old.he is only 6kg now.his birth weight is 2.7 kg.is he is normal or under weight?

A. While all babies may grow at a different rate, the following is the average for boys and girls 7 to 9 months of age: Weight: average gain of 1 pound each month; boys usually weigh about ½ pound more than girls; 2 times the birth weight by 4 to 5 months and 3 times the birth weight by 1 year.The average birth weight of a full-term female is 7 lb 2 oz , or 3.2 kg. The average weight of a baby born at 37–40 weeks ranges from 5 lb 8 oz to 8 lb 13 oz. This is 2.5 to 4 kg. At delivery, experts consider a low birth weight to be less than 5 lb 8 oz, or 2.5 kg.