By the WHO growth reference, girls who have just turned 3 have a median height of 95.1 cm (3′1″). Most children (94%) are between 87.9 cm (2′11″) and 102.2 cm (3′4″).
95.1 cm (3′1″)
median height (P50)
87.9–102.2 cm
P3–P97 range
| Age | P3 | P15 | P50 | P85 | P97 |
|---|---|---|---|---|---|
| 3 years | 87.9 | 91.1 | 95.1 | 99 | 102.2 |
| 3 years 3 months | 89.7 | 93 | 97.1 | 101.2 | 104.5 |
| 3 years 6 months | 91.4 | 94.8 | 99 | 103.3 | 106.7 |
| 3 years 9 months | 93.1 | 96.6 | 100.9 | 105.3 | 108.8 |
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 |
|---|---|
| 85 cm (2′9″) | 0.4% |
| 90 cm (2′11″) | 9% |
| 95 cm (3′1″) | 49% |
| 100 cm (3′3″) | 90% |
| 105 cm (3′5″) | 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.