What’s the average height of a 3-year-old child

by   |   Jun 11, 2024

Boys and girls have different developmental rates when it comes to height. At the age of 3, it is necessary to know the average numbers so you can tell if your child is well-developed or not. So what are the numbers and how can you make sure your kid grows tall and strong? This article of Howtogrowtaller.com will help you answer these questions!

What is the average height for 3-year-old boys and girls?

Toddlers’ growth rate varies depending on their environment, diet, lifestyle, and habits. On average, boys and girls at the age of three will gain between 4 and 6 pounds (1.81 and 2.72 kilograms) in weight, and between 2 and 3 inches (5.08 and 7.62 centimeters) in height per year.


The average height for a 3-year-old boy

The height and weight ranges for 3-year-old boys are 35.5 to 40.5 inches (90.17 to 102.87 centimeters) and 26 to 38 pounds (11.79 to 17.24 kilograms), respectively. Therefore, at this age, they should weigh 32 pounds (14.52 kilograms) on average and stand 38 inches (96.52 centimeters) tall.

The average height for a 3-year-old girl

For girls aged three, the ideal height and weight ranges are 34.5 to 40 inches (87.63 to 101.6 centimeters) and 26 to 38 pounds (11.79 to 17.24 kilograms), respectively. As a result, they should be 32 pounds (14.52 kilograms) and 37.25 inches (94.62 centimeters) tall at this age on average.

How to get taller at 3?

These average heights should not be your primary consideration because they reveal nothing about the physical health of your toddlers. You can determine whether or not they are shorter than the advised height using a guide like this. So what should you do if your children ree smaller and wish to grow taller? Even though heredity is a major effect on height growth, there are other elements as well, which are described below.

Having a nutritious diet

At the age of 3, your toddlers should have a healthy and nutrient-loaded diet to properly grow taller. All four important nutrient groups should be included in a balanced diet. Protein is essential for the development of the body’s tissues, muscles, cartilage, bones, and organs. Healthy fats aid in the delivery of nutrients that support the brain and neurological system’s healthy operation. In addition to serving as the body’s primary energy source, carbohydrates also play a role in the formation of cells and tissues. Not to mention, vitamins and minerals are essential for the normal development and operation of every organ in the body.

Getting enough vitamin D


Only when your body receives sufficient vitamin D will diet and lifestyle modifications help you grow taller. This vitamin plays a crucial role in the body’s ability to absorb calcium, which supports the development of bones and muscles. Additionally, a deficiency of this nutrient has been linked to children’s stunted growth and even obesity.

For optimal growth, kids under the age of three should acquire 600–1,000 IU of vitamin D daily. Sunlight in the morning is an incredibly simple way to get this vitamin. Toddlers can grow taller and stronger by participating in a 30-minute activity under the early sun. Vitamin D can also be found in food sources such as dairy products, mushroom, egg yolk, organ meats, and fortified cereals.

Using dietary supplements for height increase

In some circumstances, taking a height-increase supplement is encouraged. It is loaded with the nutrients needed to promote height and natural growth rate for your toddler during this age for better physical development. The product may not always be beneficial, so always check with your doctor before consuming.

Staying hydrated

Mineral and vitamin absorption is mostly supported by cells. Water consumption enhances the performance of these cells and speeds up the integration process. Additionally, it filters out harmful compounds in the body, which improves metabolism. And that’s essential for physical development.

At least three cups (16 to 32 ounces) of water should be consumed each day by three-year-old toddlers. They should drink extra to remain hydrated if they are participating in any additional active activities.


At the age of three, toddlers are hyperactive and highly energetic. They can run, jump, and walk upstairs with ease. Participating in activities like these can help your kids gain muscle and have an impact on how much growth hormone is released. Since they promote cell development and repair, these hormones are, as we all know, essential for physical growth. It is recommended that children at this age should participate in adult-led activities for at least 30 minutes daily. Additionally, they should have free-play activities for at least an hour each day.

Outdoor activities are highly encouraged as they not only promote more efficient bone, cartilage, and skeletal tissue growth but also boost their immune system. Encourage your kids without pressuring them, and attempt to assist them in identifying a passion.


Getting proper sleep

Boys and girls at the age of 3 should get between 11 and 13 hours of total sleep, and may still take a short afternoon nap for adequate physical development. The peak release of human growth hormones (HGH) occurs between the hours of 10 pm and 1 am.

In order to get proper sleep, toddlers should avoid foods and drinks, especially sugary treats. You should help your children establish winding-down time habits, like reading bedtime stories and staying away from electronics. Blue lights from these devices can negatively affect your kids’ circadian rhythms, and make them harder to fall asleep at night.

Improving body posture

Our back must naturally flex in three different positions. Yet, if your children constantly slouch or hunch, these curves may shift to reflect their new posture. Toddlers at the age of 3 may also look shorter than they truly are as a result.

It is best to establish a proper sitting form as your children will be spending a lot of time sitting in school. Maintain their legs straight and their feet flat on the ground. And also to avoid tension or strain on the body, consider changing their sitting posture or standing up occasionally.


Getting rid of bad habits

Sugary treats and junk food have a way of attracting kids. These sweets might increase their blood sugar and sodium intake as a result of satisfying an unwanted craving. You should limit your children’s access to this kind of food.

Another harmful habit is overeating. It might even classify as a disorder in the most severe circumstances. You should help your kids develop healthy eating and lifestyle habits as parents. Obesity and diabetes can be caused by overeating. They may impair the development of their bones and the appropriate release of growth hormones in your toddlers.

Final thoughts

During this age, toddlers’ heights typically increase substantially. Do not, however, conclude that all 3-year-old children are this tall. All you need to do so that they can develop properly is to encourage them to adopt a healthy lifestyle. Maintaining a healthy physique and habits are the important building blocks that your kids can utilize when they reach their teenage. You should seek counsel from your doctor if you have any concerns about their rate of development.

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