The average height for a 13-year-old boy

by   |   Jun 12, 2024

Boys go through puberty at different ages and their rates of growth can vary greatly. While the height of a boy before puberty rarely determines how tall he will ultimately be, it can still indicate several growth problems he may have. Boys who begin puberty at 11 or 12 years old are considered early maturers, while those who start around the ages of 13 or 14 are considered late maturers. However, regardless of boys’ different growth rates, there is an average height for them. What is the average height for a 13-year-old boy? Read this article to find out!

What is the average height for 13-year-old boys?

The average height of a 13-year-old boy, according to the Centers for Disease Control, is 5′ 1 3/4″ 1. Boys this age typically weigh about 100 pounds.

Age Height Weight
10 4 ft 6 in 70 lb 8 oz
11 4 ft 8 in 78 lb 8 oz
12 4 ft 10 in 88 lbs
13 5 ft 1 in 100 lbs
14 5 ft 4 in 112 lbs
15 5 ft 7 in 123 lb 8 oz

At the age of 13, boys are typically shorter than girls. This is normal as girls and boys develop differently. While boys typically show the highest growth between the ages of 12 and 15, girls’ height typically peaks two years after puberty, which typically occurs between the ages of 8 and 13. A 13-year-old girl is also about 5 ft 1 in tall on average,

Age Height
10 4 ft 6 in
11 4 ft 8 in
12 4 ft 11 in
13 5 ft 1 in
14 5 ft 3 in
15 5 ft 4 in

What can cause a growth stunt at the age of 13?

Just because your 13-year-old boy is slightly shorter than his peers, doesn’t necessarily mean he has any growth problems. However, if he is much smaller than the normal development range, he can possibly be diagnosed with a growth delay. To know for sure, you should take him for a medical check. Here are some reasons that might cause a growth stunt in a 13-year-old boy, or at least, make them somewhat shorter than most of their peers.



Genetic short stature in the family

The height of a 13-year-old boy can be lower than the average range if their parents or other family members are also short. Growing slowly because of family history doesn’t necessarily mean there’s a deeper medical issue.

Constitutional growth delay

Some children have a slower-than-average rate of growth. Simply put, these children may enter puberty later than their peers, resulting in a below-average height in their early teenage years. However, as adults, these individuals can still catch up with their peers in terms of height.

Growth hormone deficiency

If a child doesn’t have enough growth hormone, their body won’t be able to grow as fast as it would under normal circumstances. This could be a problem for children who are short or have a slower growth rate. Without enough growth hormone, the body won’t be able to grow muscle or bone properly.


Children with hypothyroidism have a lower-than-normal thyroid gland which can cause problems with their growth and development, including delayed growth.

Other causes of delayed growth

Other reasons for delayed growth in teenagers can be due to things like Down syndrome, skeletal dysplasia, anemia, kidney, heart, digestive, or lung diseases. Poor nutrition and severe stress can also cause delays in growth.

How to be taller at 13?

There are many actions you can take to increase height at 13. Here are some that we highly recommend.

Consume a nutritious diet

To maintain good health, it is important to have a nutritious diet that includes all four groups of necessary nutrients. Protein is essential for the body because it is needed to build muscle, bones, cartilage, and organs. Healthy fats are important for the brain and nervous system. Carbohydrates are the body’s primary energy source, and vitamins and minerals are essential for the healthy development and operation of every organ in the body.

Take enough vitamin D

To grow taller, you need to get enough vitamin D from food and sunlight. This is important because vitamin D helps the body to absorb calcium and other minerals, which can help to build strong bones. A deficiency in this vitamin has been linked to overweight and stunted growth in children. To ensure maximal height growth, make sure to eat foods rich in vitamin D, spend time in the sun, and drink plenty of milk and other dairy products.

Use dietary supplements for height increase

Some people find that supplements can help them grow taller, especially if their growth plates are still developing. There are many different supplements out there, so always check with your doctor before using them.


Stay hydrated

The primary organs that help to absorb vitamins and minerals are cells. Drinking water helps improve these cells’ performance and speed up the absorption process. Additionally, it helps reduce harmful substances in the body, which helps facilitate metabolism.


Physical activity is important for teenagers because it helps them to build muscle and increase their growth hormones. It’s also important for bone, cartilage, and skeletal tissue growth. Teenagers should engage in physical activity for at least 60 minutes every day, but it’s okay if they want to do something their own way.

Get proper sleep

To improve your sleep quality, avoid using smart devices late at night and eat a light dinner around bedtime to help your body rest and heal. To grow taller and build muscle properly, children need to get enough sleep. This is because, during sleep, your body heals and grows, and produces growth hormones.

Improve body posture

Your back naturally bends in three different positions, depending on the posture you adopt. If you hunch or slouch, your back’s natural curves may change to match your new posture, which can make you appear shorter than you actually are. To avoid tension or strain on the body, remember to switch up your sitting positions or stand up occasionally.

Dress properly

There are a number of things you can do to make yourself look taller and slimmer, such as choosing darker colors for your clothing and wearing vertical stripes. If you’re not quite as tall as you’d like to be, make sure to avoid wearing clothing that is baggy or bulky, as these styles will only make you look shorter. Instead, try dressing in clothes that fit your body well and accentuate your height rather than hiding it.

In conclusion

At 13 years old, a kid is still growing and can grow a lot taller over the course of the next few years. Parents need to encourage their kids to lead a healthy lifestyle and not get too worried about their height if it’s not within the average range. You should talk to a doctor if you have any concerns about your child’s growth.

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