How much does an average 7 month old infant child weigh?

so far i have seen other peoples babies ranging from 16lbs to 26lbs. You have to remember that every baby starts out differantly and grows differantly as well. For example my daughter is 7 months old and weights about 17.4 pounds and is about 2'2'' she was born at 5lbs 13oz's and at 19 inches long, now i have a friend whos baby is four days older then my baby. She was born 6lbs 15 oz's and was also 21 inches long, she wears bigger clothes then my baby still and weights about 21 pounds and im not sure her current length but its still longer then my daughters. So as you can see a baby born almost the same time can still be different do to the factors each child brings when he or she is born if you have that big of an alarm ask your doctor im sure if there was a problem your doctor would address it to you at your son or daughters check ups as well. I hope you find this information helpfull.