Question: 5 months baby how much weight?
Answer: 5-Month-Old Baby Weight & Length The average weight for a 5-month-old baby is 15.2 pounds for girls and 16.6 pounds for boys; the average length (aka height) is 25.2 inches for girls and 25.9 inches for boys. Of course that doesn't mean your 5-month-old should weigh and measure exactly that.