Normal weight for 12 year olds
The average weight for 12 year old boys is 89.7 lbs and 12 year old girls average 92.2 lbs1 The tables below show the distribution of weight by percentile of the 12 year year old population.
Current units = pounds. View this page in kilograms.
12 year old girls under 69 lbs or over 123 lbs and 12 year old boys who weigh less than 67 lbs or more than 119 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 12 year old boys
| Percentile | Weight |
|---|---|
| 3rd | 65 lbs |
| 5th | 67.4 lbs |
| 10th | 71.3 lbs |
| 25th | 79.1 lbs |
| 50th | 89.7 lbs |
| 75th | 103.2 lbs |
| 90th | 119 lbs |
| 95th | 130.7 lbs |
| 97th | 139.6 lbs |
Body weight percentile chart for 12 year old girls
| Percentile | Weight |
|---|---|
| 3rd | 66.2 lbs |
| 5th | 68.7 lbs |
| 10th | 72.9 lbs |
| 25th | 81 lbs |
| 50th | 92.2 lbs |
| 75th | 106.6 lbs |
| 90th | 123.3 lbs |
| 95th | 135.9 lbs |
| 97th | 145.3 lbs |
Source Citations
- 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?