Height prediction
How Tall Will a 13-Year-Old Boy Be?
By the Taller team · Updated · 4 min read · How we write
A boy of average height at 13 (5'3" (160 cm)) is on track to be about 5'9.5" (177 cm) as an adult. Find your current height in the chart below to see your own projection: it assumes you keep the same percentile on the CDC growth charts until you stop growing.
At 13, many boys are in their growth spurt. The fastest year of growth for most boys falls around 13 to 14, when some gain 3 inches (7–8 cm) or more in a year.
Predicted adult height for 13-year-old boys
Heights measured around 13½. “Likely range” reflects how much puberty timing usually changes the outcome at this age.
| Height at 13 | Percentile | Predicted adult height | Likely range |
|---|---|---|---|
| 4'10" (147 cm) | 6th | 5'5" (166 cm) | 5'2" – 5'8.5" |
| 4'11" (150 cm) | 10th | 5'6" (168 cm) | 5'3" – 5'9.5" |
| 5'0" (152 cm) | 17th | 5'7" (170 cm) | 5'3.5" – 5'10" |
| 5'1" (155 cm) | 26th | 5'8" (172 cm) | 5'4.5" – 5'11" |
| 5'2" (157 cm) | 38th | 5'8.5" (175 cm) | 5'5.5" – 6'0" |
| 5'3" (160 cm) | 50th | 5'9.5" (177 cm) | 5'6.5" – 6'1" |
| 5'4" (163 cm) | 62nd | 5'10.5" (179 cm) | 5'7.5" – 6'2" |
| 5'5" (165 cm) | 74th | 5'11.5" (181 cm) | 5'8" – 6'2.5" |
| 5'6" (168 cm) | 83rd | 6'0.5" (184 cm) | 5'9" – 6'3.5" |
| 5'7" (170 cm) | 90th | 6'1" (186 cm) | 5'10" – 6'4.5" |
| 5'8" (173 cm) | 95th | 6'2" (188 cm) | 5'11" – 6'5.5" |
Get a personal prediction
Your parents’ heights matter as much as your current height. Add them below for a prediction that combines both.
Why the prediction can be off
- Puberty timing. A boy who starts puberty early looks tall for 13 but usually stops growing sooner. A late bloomer looks short now and keeps growing longer. See late bloomers and growth spurts.
- Genetics. Children tend to end up near their parents’ mid-parental target height.
- Health and habits. Sleep, nutrition and general health help a boy reach the height his genes allow, but don’t raise the ceiling. See how to grow taller at 13.
Only a bone-age X-ray read by a doctor can narrow the estimate much further. Median adult height in the US is 5'9.5" for men and 5'4.5" for women on the same charts.
Frequently asked questions
If I’m 5'1" at 13, how tall will I be?
A boy who is 5'1" at 13 is around the 26th percentile. If he stays on that growth curve, his adult height would be about 5'8" (172 cm), most likely between 5'4.5" and 5'11". Early or late puberty and the parents’ heights can move this.
If I’m 5'3" at 13, how tall will I be?
A boy who is 5'3" at 13 is around the 50th percentile. If he stays on that growth curve, his adult height would be about 5'9.5" (177 cm), most likely between 5'6.5" and 6'1". Early or late puberty and the parents’ heights can move this.
If I’m 5'5" at 13, how tall will I be?
A boy who is 5'5" at 13 is around the 74th percentile. If he stays on that growth curve, his adult height would be about 5'11.5" (181 cm), most likely between 5'8" and 6'2.5". Early or late puberty and the parents’ heights can move this.
How accurate are these predictions?
They assume a boy keeps the same percentile until adulthood, which is a reasonable average but not a rule. Around this age puberty timing is the biggest unknown: early bloomers often end up shorter than their projection and late bloomers taller. Adding both parents’ heights in the calculator improves the estimate.
Sources
- Clinical Growth Charts (2000 CDC stature-for-age) — CDC / National Center for Health Statistics
- Data Table of Stature-for-age Charts (LMS parameters) — CDC
- Puberty — Nemours KidsHealth
Predictions for other ages (boys)
Keep reading
This page is for general education and is not medical advice. Growth is very individual: if you are worried about your height, growth or puberty, talk to a doctor or a pediatric endocrinologist.