What is the normal height for a child?

Children's normal height changes with age and varies by gender. Generally, the average length of a newborn is about 50 cm. By age 1, the average height reaches 75 cm (approximately 75 cm for boys and 73 cm for girls); by age 2, it is around 85 cm (approximately 85 cm for boys and 83 cm for girls). After that, the height of children aged 2 to 6 can be estimated using the formula "age × 7 + 75 cm," while for children aged 7 to 12, the formula "age × 6 + 80 cm" can be used. However, please note that these values are only reference averages. Each child's growth rate may differ due to various factors such as genetics, nutrition, environment, and others.