Normal height for 21 month olds
The average height for 21 month old toddler boys is 33.5 in and 21 month old toddler girls average 32.9 in1 The tables below show the distribution of height by percentile of the 21 month year old population.
Current units = feet/inches. View this page in centimeters.
Height percentile table for 21 month old toddler boys
| Percentile | Height |
|---|---|
| 3rd | 31 in |
| 5th | 31.3 in |
| 10th | 31.8 in |
| 25th | 32.6 in |
| 50th | 33.5 in |
| 75th | 34.4 in |
| 90th | 35.3 in |
| 95th | 35.7 in |
| 97th | 36.1 in |
Height percentile table for 21 month old toddler girls
| Percentile | Height |
|---|---|
| 3rd | 30.4 in |
| 5th | 30.7 in |
| 10th | 31.2 in |
| 25th | 32 in |
| 50th | 32.9 in |
| 75th | 33.8 in |
| 90th | 34.6 in |
| 95th | 35.1 in |
| 97th | 35.4 in |
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