Normal weight for 11 month olds

The average weight for 11 month old baby boys is 22.4 lbs and 11 month old baby girls average 20.6 lbs1 The tables below show the distribution of weight by percentile of the 11 month year old population.

Current units = pounds. View this page in kilograms.

11 month old girls under 17 lbs or over 24 lbs and 11 month old boys who weigh less than 19 lbs or more than 26 lbs may want to consult a doctor. The American Academy of Pediatrics recommends that children who's weight is outside the 5th or 85th percentiles seek professional advice to determine if further evaluation is needed2.

Body weight percentile chart for 11 month old baby boys
Percentile Weight
3rd 18.3 lbs
5th 18.7 lbs
10th 19.5 lbs
25th 20.8 lbs
50th 22.4 lbs
75th 24.2 lbs
90th 25.9 lbs
95th 27 lbs
97th 27.7 lbs
Body weight percentile chart for 11 month old baby girls
Percentile Weight
3rd 16.9 lbs
5th 17.3 lbs
10th 18 lbs
25th 19.2 lbs
50th 20.6 lbs
75th 22.2 lbs
90th 23.7 lbs
95th 24.7 lbs
97th 25.3 lbs

Source Citations
  1. 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
  2. American Academy of Pediatrics Is Your Child Overweight?

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