What Is the Average Height for Boys?

by   |   May 21, 2024

Watching our children grow is one of the greatest joys of parenting. Their physical development, especially their height, is an important indicator of their overall health and well-being. As parents, understanding the average heights for boys at different ages can help us ensure our sons are on track and thriving. This article will explore the typical height ranges for boys from infancy through adolescence. We’ll also examine some of the key factors that influence height, like genetics and nutrition. By the end, you’ll have a better grasp of what to expect for your son’s growth and how to support him in reaching his full potential.

Average height for a boy

While it’s not easy to predict a boy’s height, parents can look at a few benchmarks for reference [1]: 

  • Boys aged 2 – 9 years old have an average of 34 inches at the onset and reach an average of 50 inches by the end of 9.
  • Boys aged 10 – 14 years old will grow around 55 – 65 inches during this period.
  • Boys aged 15 – 18 years old will grow around 68 – 70 inches and continue gradually for a few years later, varying by different people.

The average boy height for different ages has been listed in the list below by CDC (2000) [2]: 

Age (years)

50th percentile height for boys (inches and centimeters)

8 50.4 in. (128 cm)
9 52.6 in. (133.5 cm)
10 54.5 in. (138.5 cm)
11 56.4 in. (143.5 cm)
12 58.7 in. (149 cm)
13 61.4 in. (156 cm)
14 64.6 in. (164 cm)
15 66.9 in. (170 cm)
16 68.3 in. (173.5 cm)
17 69.1 in. (175.5 cm)
18 69.3 in. (176 cm)

Average height of children from 8 to 18 years old

It is important to note that boys who are under or above this average boy height are not unusually short or tall because individuals are different. Parents should pay more attention to the progression of growth rather than figures only.

In addition, the average boy height varies across different regions and countries around the world [3]. All the measurements show the differences. The average boy height in European countries like the Netherlands and Denmark belonged to the highest, while the shortest figures were found in South East Asia, Latin America and East Africa. For instance, the Netherlands had the tallest average boy height for 19-year-old boys with just over 6 feet. On the other hand, East Timor had the shortest with 5 feet 2 inches, significantly 8-inch differences.

In the US, the average height for an adult man is around 5 feet 9 inches (69.1 inches) or 175.4 cm, this figure falls almost in the middle of national averages.


What determines the height of boys?

It is undeniable that genetics play the major role in deciding one’s height. Children inherit the genes from their parents and family; but different combinations of genes can lead to varying heights of people, even people from the same family. 

However, genetics is not the sole factor that determines one’s height but there are other attributes found by research and studies. Nutrition, especially in adolescence and teenage stages, plays a critical role for children to grow taller and healthier. Proper nutrition can come from a well-balanced diet that has various nutrients with proteins, fruits, vegetables and so on. Sufficient sleep and a healthy living environment are other determinants that can impact children’s proper growth. Regular exercises are also important to support their body development.

Puberty and Average Boy Height

Puberty is the growth process where a child’s body transitions into an adult form. For boys, puberty typically begins around age 12 and triggers significant growth spurts in height and muscle mass, allowing them to quickly surpass girls of the same age.

The onset and duration of puberty vary individually, ranging from 8-14 years old. The fastest growth rate occurs 1-2 years after puberty starts, with boys growing an average of 3 inches (7.6 cm) per year during this time.

While early maturers (puberty at 11-12 years) and late maturers (13-14 years) experience different timing, they ultimately achieve similar average heights. Late maturers grow faster to catch up after their delayed start.

Individual variation is normal, so boys shouldn’t worry if puberty begins sooner or later than their peers. The onset age doesn’t determine final height, only the timeframe for completing pubertal growth.


When do boys stop growing?

Normally it will take 2 – 5 years for boys to develop into adults and they will reach about 92% of their peak height during puberty.

They generally stop growing at age 16 and most will develop fully at the age of 18.  Some people believe that boys will keep growing until they are 25 years old; however, the growth curve of a majority of boys tends to flatten around 18 – 20 years of age. Only those who hit puberty really late continue to gain height into their early twenties, but these cases are extremely rare.

Learn more about the age when boys stop growing and different factors contributing to their height growth in this article.

The Factors that Affect Boy Height

A boy’s height is primarily determined by genetics, inherited from parents. However, other factors like nutrition, exercise, and environmental exposures can also influence growth and development.

Proper nutrition with a balanced diet is crucial for reaching full height potential. Regular physical activity promotes healthy bone development and overall growth. Exposures to substances like tobacco smoke and pollutants may interfere with optimal growth.

While genetics plays a key role, ensuring adequate nutrition, exercise, and a healthy environment can help support a child in achieving their maximum possible height. Addressing these modifiable factors is important for proper growth and development.

How to help your boys catch up with average boy height?

Although it is different for individuals, there are ways to ensure that your boys are growing healthily and keep up with the average boy height in order not to worry they are falling short or behind.

Have a well-balanced diet

A diet with various types of foods can provide sufficient nutrition for boys to grow tall and strong. Parents should pay attention to make healthy foods that contain needed nutrients for height growth such as proteins, Calcium, vitamin D, etc. Also, limit their intake of sugar and junk food as they can inhibit their natural growth.

Sleep enough hours

It is the enhanced growth hormone secretion during deep sleep that largely helps boys grow taller. Therefore, getting an appropriate amount of sleep, at least 8 hours daily, allows them to increase height significantly and nourish optimal health. 

Exercise or play sports

It is also essential for boys to stay active and exercise regularly to trigger bone growth, improve their health, and boost body development.


Certain sports such as volleyball, basketball, swimming, badminton, and cycling are beneficial for height increase. They involve a lot of jumping and stretching, which stimulates cartilage growth and growth hormone production. 

Try stretching or hanging

Our spines get compressed throughout the day due to gravity. Stretching and hanging can help reverse this compression, allowing your spine to decompress and your full height potential to be expressed. Astronauts in zero gravity are up to 2 inches taller than on Earth. Regular stretching and hanging exercises may help growing children maximize their height, while adults could see a temporary height increase.

Maintain good posture

Poor posture can stunt growth during developmental years and lead to permanent height loss over time. It also causes back and neck pain. Good posture aligns the spine correctly, reducing compression and allowing maximum growth potential to be reached. Be mindful of how you sit, stand, and walk to maintain proper posture.

Practice yoga

Yoga is one of the best ways to correct your posture. Besides, it also increases flexibility, builds strength, and keeps your body healthy. These benefits could directly or indirectly boost height growth, and as a result, you can see noticeable changes to your boys’ height with regular yoga practice.

Some yoga poses to try in an attempt to improve height include:

  • Cat-Cow
  • Cobra
  • Downward-Facing Dog
  • Standing Forward Bend
  • Crescent or Low Lunge

Take height growth supplements

Sometimes it can be difficult for boys to eat nutritious foods on a daily basis, not to mention some picky eating habits and food allergies. With this in mind, taking supplements can be a good idea to provide them with good nutritional support and help them reach their maximal height.

Be happy

Stress can negatively impact height growth in children. Studies show that those living in stressful environments produce less growth hormone. To promote tall and healthy growth, especially during puberty, parents should provide a happy, safe home environment, ensure proper nutrition, encourage adequate sleep, and support physical activity.

While individual growth patterns vary, facilitating a positive environment and lifestyle habits can help children reach their maximum potential height.


[1] https://www.verywellfit.com/average-height-for-a-man-statistics-2632137

[2] https://www.healthline.com/health/when-do-boys-stop-growing#median-height

[3] https://www.washingtonpost.com/health/child-height-weight-average-world/2020/12/04/196d4c0e-34d0-11eb-8d38-6aea1adb3839_story.html



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