When Do We Stop Growing Taller?

Overall, human growth is a complex process influenced by various factors, including genetics, nutrition, hormones, and environmental conditions. During childhood and adolescence, we experience rapid growth as our bodies develop and mature, says the Better Health Channel. This growth is driven by the production of growth hormone, which stimulates bone and muscle growth.

The Centers for Disease Control and Prevention (CDC) says that the average height for girls in the United States aged 20 is 63 inches. This is approximately 5 feet 4 inches, or 162.5 cm. The average height for men in the United States aged 20 and over is around 69.2 inches, says the CDC. This is approximately 5 feet 9 inches, or 175.7 cm. Suppose you're concerned about your height or that of a child. In that case, it's always best to remember that the time we stop growing may depend on various factors. Continue reading for further details.

In general, most people stop growing taller by the time they reach their late teens or early twenties, with the average age being around 18 for girls and 20 for boys. Boys typically experience a growth spurt during puberty, typically between the ages of 12 and 15, says Healthline. During this time, boys can grow several inches taller each year, with the most rapid growth occurring around age 13.5, as explained by the MSD Manual. However, growth rates can vary widely during puberty, and some boys whose physical development is delayed may continue to grow more slowly until normal height is reached, says the source. Girls typically experience a growth spurt during puberty, often between 9.5 and 13.5 years old, and grow around 3½ inches during the maximum-growth year. 

Once the growth plates in the bones fuse, growth stops completely. This usually occurs around age 15 to 17 for boys and 13 to15 for girls, per Nemours Kids Health. However, this may vary based on individual factors.

Genetics is one of the most important factors influencing how tall we grow. Our height is largely determined by the genes we inherit from our parents, says Healthline. While genetics is a significant factor, it's not the only one. Growth hormones — which the body produces when you're sleeping — also play a significant role in determining our height. However, growth is also influenced by nutrition. Adequate intake of essential nutrients such as protein and vitamin D is crucial for supporting healthy growth. Nutritional deficiencies can lead to stunted growth or other growth-related disorders. In addition, environmental factors such as exposure to disease and living conditions can also impact growth and development, as explained by Medical News Today.

Overall, while we cannot change our genetics, we can support healthy growth and development by maintaining a healthy lifestyle, getting adequate nutrition, and seeking medical care if necessary.