How much should a 15 month old baby weigh?

The average weight of a 15-month-old girl is about 9.53 Kilogram. Boys of the same age weigh about 9.98 Kilogram. The average height for boys and girls at 15 months old is 31 inches.

Not All Babies are the Same

Just like adults, babies come in all shapes and sizes. Not all 15-month-olds will be the average weight for their gender. Some may be 2 or 3 pounds more and some 2 or 3 pounds less. Chubbiness or thinness at this age really doesn't matter as long as your baby is growing at a consistent rate.

Bottom Line

According to, a website from the Nemours Foundation, a non-profit organisation devoted to improving the health of children, "A baby who is happy, active, and interested in nearby surroundings most likely is getting enough to eat and growing properly. A heavier child should not be put on a calorie-restricted diet without specific medical advice and supervision."

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About the Author

Michelle Hogan is a writer and the author of 13 books including the 2005 bestselling memoir, "Without a Net: Middle Class and Homeless (With Kids) in America." Hogan studied English at American University and has been writing professionally since 1998. Her work has appeared in "The New York Times," "Redbook," "Family Circle" and many other publications.