Normal weight for 4 month olds (lbs)
The average weight for 4 month old baby boys is 15.5 lbs and 4 month old baby girls average 14.2 lbs1 The tables below show the distribution of weight by percentile of the 4 month year old population.
Current units = pounds. View this page in kilograms.
Body weight percentile table for 4 month old baby boys
Body weight percentile table for 4 month old baby girls
- Robert J. Kuczmarski Dr.P.H. et al., Centers for Disease Control and Prevention, U.S. Department of Health & Human Services 2000 CDC Growth Charts for the United States: Methods and Development
- American Academy of Pediatrics Is Your Child Overweight?