Normal weight for 7 month olds

The average weight for 7 month old baby boys is 8.6 kg and 7 month old baby girls average 7.9 kg1 The tables below show the distribution of weight by percentile of the 7 month year old population.

Current units = kilograms. View this page in pounds.

7 month old girls under 7 kg or over 9 kg and 7 month old boys who weigh less than 7 kg or more than 10 kg 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 7 month old baby boys
Percentile Weight
3rd 7 kg
5th 7.2 kg
10th 7.5 kg
25th 8 kg
50th 8.6 kg
75th 9.3 kg
90th 10 kg
95th 10.5 kg
97th 10.7 kg
Body weight percentile chart for 7 month old baby girls
Percentile Weight
3rd 6.4 kg
5th 6.5 kg
10th 6.8 kg
25th 7.3 kg
50th 7.9 kg
75th 8.5 kg
90th 9.1 kg
95th 9.5 kg
97th 9.7 kg

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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