Normal weight for 8 year olds

The average weight for 8 year old boys is 56.8 lbs and 8 year old girls average 56.8 lbs1 The tables below show the distribution of weight by percentile of the 8 year year old population.

Current units = pounds. View this page in kilograms.

8 year old girls under 44 lbs or over 73 lbs and 8 year old boys who weigh less than 46 lbs or more than 72 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 8 year old boys
Percentile Weight
3rd 44.3 lbs
5th 45.6 lbs
10th 47.6 lbs
25th 51.5 lbs
50th 56.8 lbs
75th 63.6 lbs
90th 71.7 lbs
95th 77.8 lbs
97th 82.5 lbs
Body weight percentile chart for 8 year old girls
Percentile Weight
3rd 43.1 lbs
5th 44.4 lbs
10th 46.6 lbs
25th 50.9 lbs
50th 56.8 lbs
75th 64.3 lbs
90th 73.2 lbs
95th 79.9 lbs
97th 85 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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