Normal height for 18 month olds
The average height for 18 month old toddler boys is 82.4 cm and 18 month old toddler girls average 80.8 cm1 The tables below show the distribution of height by percentile of the 18 month year old population.
Current units = centimeters. View this page in feet/inches.
Height percentile table for 18 month old toddler boys
| Percentile | Height |
|---|---|
| 3rd | 76.5 cm |
| 5th | 77.2 cm |
| 10th | 78.3 cm |
| 25th | 80.2 cm |
| 50th | 82.4 cm |
| 75th | 84.6 cm |
| 90th | 86.7 cm |
| 95th | 87.9 cm |
| 97th | 88.7 cm |
Height percentile table for 18 month old toddler girls
| Percentile | Height |
|---|---|
| 3rd | 74.6 cm |
| 5th | 75.4 cm |
| 10th | 76.6 cm |
| 25th | 78.6 cm |
| 50th | 80.8 cm |
| 75th | 83 cm |
| 90th | 84.9 cm |
| 95th | 86.1 cm |
| 97th | 86.8 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