The average rate at which infants grow in height during the first four years after birth?

Infants typically experience rapid growth in height during their first year, averaging about 10 inches (25 cm) in length. From ages one to two, they grow about 4 to 5 inches (10-13 cm) per year. During the second to third year, the growth rate slows slightly to around 3 inches (7.5 cm) annually, and from ages three to four, children grow about 2 to 3 inches (5-7.5 cm) per year. Overall, the first four years of life see significant height increases as infants transition into early childhood.