My baby birth weight 2.2 kg and current weight is 5.5 kg….he is 4 month old…is this weight growth appropriate?

A. Yeah yeah 3300 g is a very healthy weight gain that your child is having a minimum expected weight gain every month is about half a kilo kilogram your child has gained much better than that because minimum is 500 g maximum 1 kg all in all if you look at it this is very good