Normal weight for 18 year olds (kg)
The average weight for 18 year old teenage boys is 67.3 kg and 18 year old teenage girls average 56.2 kg1 The tables below show the distribution of weight by percentile of the 18 year year old population.
Current units = kilograms. View this page in pounds.
As teenagers transition into young adults at the age of 18, their bodies reach their peak physical development. The average weight for an 18-year-old generally falls around 67 kg for boys and 56 kg for girls based on CDC growth charts1. It's important to remember that young adults may continue to experience variations in weight depending on their lifestyle choices and genetics. Encouraging positive body image and promoting overall health through balanced eating and regular exercise can contribute to their well-being in this crucial life stage.
Body weight percentile table for 18 year old teenage boys
| Percentile | Weight |
|---|---|
| 3rd | 51.7 kg |
| 5th | 53.2 kg |
| 10th | 55.8 kg |
| 25th | 60.7 kg |
| 50th | 67.3 kg |
| 75th | 75.6 kg |
| 90th | 85.1 kg |
| 95th | 92 kg |
| 97th | 97.2 kg |
Body weight percentile table for 18 year old teenage girls
| Percentile | Weight |
|---|---|
| 3rd | 44.2 kg |
| 5th | 45.4 kg |
| 10th | 47.2 kg |
| 25th | 51 kg |
| 50th | 56.2 kg |
| 75th | 63.4 kg |
| 90th | 72.8 kg |
| 95th | 80.8 kg |
| 97th | 87.4 kg |
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?