Normal height for 9 year olds
The average height for 9 year old boys is 133.7 cm and 9 year old girls average 133.1 cm1 The tables below show the distribution of height by percentile of the 9 year year old population.
Current units = centimeters. View this page in feet/inches.
Height percentile table for 9 year old boys
| Percentile | Height | 
|---|---|
| 3rd | 122.4 cm | 
| 5th | 123.8 cm | 
| 10th | 126 cm | 
| 25th | 129.6 cm | 
| 50th | 133.7 cm | 
| 75th | 137.9 cm | 
| 90th | 141.8 cm | 
| 95th | 144.1 cm | 
| 97th | 145.7 cm | 
Height percentile table for 9 year old girls
| Percentile | Height | 
|---|---|
| 3rd | 121.9 cm | 
| 5th | 123.2 cm | 
| 10th | 125.3 cm | 
| 25th | 129 cm | 
| 50th | 133.1 cm | 
| 75th | 137.4 cm | 
| 90th | 141.4 cm | 
| 95th | 143.8 cm | 
| 97th | 145.4 cm | 
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