Typical height and growth left at 15
| Average height | Adult height reached | Typical growth left | |
|---|---|---|---|
| Boys | 5′7″ · 170 cm | 96% | 7 cm · 2.7 in |
| Girls | 5′3½″ · 162 cm | 99% | 1 cm · 0.6 in |
Averages from CDC growth charts at exactly 15 years, compared with the chart's adult height at 20.
Boys at 15
Early developers are slowing down; late developers may still be in their fastest growth.
Girls at 15
Most girls have finished growing.
Why an average isn't your answer
Two 15-year-olds of the same height can end up at very different adult heights, because one has done most of their growing and the other hasn't started. Your parents' heights and your current weight tell the calculator which one you are likely to be, so your range is far tighter than any average. Check signs you're still growing too.
