By the WHO growth reference, boys who have just turned 2 have a median height of 87.1 cm (2′10″). Most children (94%) are between 81.4 cm (2′8″) and 92.9 cm (3′1″).
87.1 cm (2′10″)
median height (P50)
81.4–92.9 cm
P3–P97 range
| Age | P3 | P15 | P50 | P85 | P97 |
|---|---|---|---|---|---|
| 2 years | 81.4 | 84 | 87.1 | 90.3 | 92.9 |
| 2 years 3 months | 83.5 | 86.3 | 89.6 | 93 | 95.7 |
| 2 years 6 months | 85.5 | 88.4 | 91.9 | 95.5 | 98.3 |
| 2 years 9 months | 87.4 | 90.4 | 94.1 | 97.8 | 100.8 |
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 |
|---|---|
| 80 cm (2′7″) | 1% |
| 85 cm (2′9″) | 24% |
| 90 cm (2′11″) | 83% |
| 95 cm (3′1″) | 99.5% |
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.