The average growth of 2-3 years old is about 8cm/year. 2 years old boy’s standard height is 88.5cm, 3 years old boy’s standard height is 96.8cm, 1 year average height growth is 8.3cm. 2 years old girl’s standard height is 87.2cm, 3 years old girl’s average height is 95.6cm, 1 year average growth is 8.4cm. 2-3 years old child is a relatively fast growth period, average growth If the child can ensure a normal diet, sleep and exercise, the child’s height growth is not a problem. If the child has poor immune function, partial or picky eating, nutritional deficiencies, and poor sleep quality, it will have an impact on height growth.