By the WHO growth reference, boys who have just turned 5 have a median height of 110 cm (3′7″). Most children (94%) are between 101.2 cm (3′4″) and 118.7 cm (3′11″).
110 cm (3′7″)
median height (P50)
101.2–118.7 cm
P3–P97 range
| Age | P3 | P15 | P50 | P85 | P97 |
|---|---|---|---|---|---|
| 5 years | 101.2 | 105.2 | 110 | 114.8 | 118.7 |
| 5 years 3 months | 102.6 | 106.5 | 111.3 | 116.2 | 120.1 |
| 5 years 6 months | 104 | 108 | 112.9 | 117.8 | 121.8 |
| 5 years 9 months | 105.4 | 109.4 | 114.5 | 119.5 | 123.5 |
P50 is the median: half of children the same age are shorter and half taller. P3 to P97 is the range WHO treats as normal.
| Height | Children shorter |
|---|---|
| 95 cm (3′1″) | 0.1% |
| 100 cm (3′3″) | 2% |
| 105 cm (3′5″) | 14% |
| 110 cm (3′7″) | 50% |
| 115 cm (3′9″) | 86% |
| 120 cm (3′11″) | 98% |
| 125 cm (4′1″) | 99.9% |
Values come straight from World Health Organization tables: the WHO Child Growth Standards (2006) for ages 0–5 and the WHO Growth Reference (2007) for ages 5–19. National references (CDC in the US, for example) can differ by a few centimetres. This is not a diagnostic tool: growth over time matters more than a single measurement, and questions about your child's growth belong with their doctor.