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What Is The Average Weight For A 13-Year-Old?

The healthy weight range for a 13-year-old adolescent is between 75 to 148 pounds, with the average weight being about 100 pounds for boys and 101 for girls. You should keep in mind, though, that anywhere in that range is considered normal and not underweight or overweight by itself.

During puberty, kids will have growth spurts at various ages and gain muscle, fat, and bone as their bodies develop. Consequently, the range of “normal” weights, shapes, and sizes is very broad.

What Is The Average Weight For A 13-Year-Old Boy?

At 13, the average weight for boys (50th percentile for weight) is 100 pounds (45.3 kilograms or 7 stone 2 pounds). The healthy weight range for a 13-year-old boy is between 75 pounds (34kg) and 145 pounds (65.8kg).

Average Weight For A 13-Year-Old Female

At 13, the average weight for girls (50th percentile for weight ) is 101 pounds (45.8 kilograms or 7 stone 3 pounds). The healthy weight range for a 13-year-old girl is between 76 pounds (34.5kg) and 148 pounds (67kg.)

How Much Should A 13-Year-Old Weigh?

what is the average weight for a 13-year-old

The answer depends on various factors such as age, sex, height, and body composition.

Understanding the healthy range for a 13-year-old kid allows parents and teens to set reasonable goals for their weight. It will help them determine whether they have a healthy weight status or if the child may be at risk of obesity or malnutrition.

BMI (Body Mass Index) will help you identify if your child is in the healthy weight range for their age.

BMI is calculated using a child’s gender, age, height, and weight.

You can calculate your child’s BMI using this percentile calculator for children, which will then give you an accurate measure and tell you if your child is underweight, at an ideal weight, at risk of being overweight, or is now overweight.

Average Height For 13 Year Olds

Average Height For 13 Year Old Boy

You can find the average height for a 13-year-old boy if you look at the 50th percentile for height in boys, which is 61.4 inches (156cm or 5.1 feet).

Average Height For 13-Year Old Female

The average height for a 13-year-old girl, if you look at the 50th percentile for height in girls, is 61.8 in. or 157 cm (5.15 feet.)

What Is Underweight For A 13 Year Old?

To know if a child is underweight, you would need to also look at their height.

A person’s height and weight play a role in determining his BMI (Body Mass Index).

An ideal BMI for a 13-year-old is between 15.4 and 22.8.

Taking all this information into account, a healthy weight would be found.

In the absence of height, it would be impossible to determine if your child is underweight.

You wouldn’t expect a child of 5’3″ to weigh the same as a child that is 6′ in height.

If the taller child were a healthy weight, the shorter child would be obese at the same weight.

Likewise, if the shorter child were the same weight as the taller child, the taller child would be highly underweight.

Having a BMI of less than 15.4 and weighing less than 75 pounds (35kg) could be considered underweight for a 13-year-old. See more age-related weight stats here.

If a child’s weight is outside the 5th or 85th percentile, the American Academy of Pediatrics recommends seeking professional advice to determine if further evaluation is necessary.

What Is Overweight For A 13 Year Old?

It is best to use a pediatric chart or calculator that takes into account both the child’s age and height.

Teenagers who are overweight fall between the 85th and 95th percentile based on their BMI for their age.

An ideal BMI for a 13-year-old is between 15.4 and 22.8.

Having a child & teen BMI of more than 22.8 and weighing more than 132 pounds (60kg) could be considered overweight for a 13-year-old. See more BMI stats here.

It is, however, important to mention that most kids, both boys, and girls, tend to gain a little bit of weight right before they hit puberty and begin to grow rapidly.

Teens will grow on average about 4 inches per year for boys and 3 to 3.5 inches per year for girls during puberty, so it’s difficult to judge weight at this time. So it is sometimes best to trust the body of a healthy child who is active and does not have a history of obesity.

Also, consider how much muscle a child has, as well as their bone density. Boys with muscular builds will always weigh more than boys with slim builds. It is not always possible to determine a person’s health by the number on the scale alone.

A pediatrician can help determine if a child is overweight or at risk of being overweight.

Teens that fall into the overweight and obese categories may be at greater risk for developing type 2 diabetes, high cholesterol, or other weight-related health problems.

However, BMI is not always the most accurate measurement as it doesn’t consider muscle mass or other factors that affect weight, particularly muscle versus fat.

Measuring their waist circumference, and calculating their waist to height, or waist to hip ratio is another way to determine possible health related issue.

BMI Percentile Chart

bmi-chart

In the United States, the most common growth chart to measure children’s size and growth is the BMI-for-age percentile chart.

Based on expert committee recommendations, the following table shows BMI-for-age weight status categories and corresponding percentiles.

Weight Status Category Percentile Range
Underweight Less than the 5th percentile
Healthy Weight 5th percentile to less than the 85th percentile
Overweight 85th to less than the 95th percentile
Obesity Equal to or greater than the 95th percentile

Source: CDC

Various Weight Percentiles

The following tables show the weight percentile of 13-year-olds. A weight in the 50th percentile means that of 100 13-year-old girls, 50 will weigh more while 50 will weigh less.

Various Weight Percentiles For Boys

5th percentile 75 pounds
10th percentile 80 pounds
25th percentile 88 pounds
50th percentile 100 pounds
75th percentile 116 pounds
90th percentile 133 pounds
95th percentile 145 pounds

Source: Healthline.com

Various Weight Percentiles For Girls

5th percentile 76 pounds
10th percentile 80 pounds
25th percentile 89 pounds
50th percentile 101 pounds
75th percentile 116 pounds
90th percentile 135 pounds
95th percentile 148 pounds

Source: Healthline.com

Average Weight & Height By Age

BMI average weight & height for 13 year old

The following are average weight and height for children based on growth charts sourced from The World Health Organization. These represent an average estimate of teen weight and height but should be used with a BMI calculator for kids if you want to determine if your child is of a healthy weight for their age and height.

It is also important to remember that teenagers will have several growth spurts during these pubescent years. During this period, they will gain weight and then have a growth spurt, so measuring whether a child’s weight and height are on track can be difficult to judge.

Average Weight & Height For 10-Year-Old

  • The average weight for a 10 year old female is 70.5 lb (31.9 kg).
  • The average height for a 10 year old girl is 54.5″ (138.4 cm).
  • The average weight for a 10 year old male is 70.5 lb (32 kg).
  • The average height for a 10 year old boy is 54.5″ (138.4 cm).

How Much Should 11-Year-Olds Weigh?

  • The average weight for an 11 year old female is 81.5 lb (36.9 kg).
  • The average height for an 11 year old girl is 56.7″ (144 cm).
  • The average weight for an 11 year old male is 78.5 lb (35.6 kg).
  • The average height for an 11 year old boy is 56.5″ (143.5 cm).

What Is The Average Weight For A 12-Year-Old?

  • The average weight for a 12 year old female is 91.5 lb (41.5 kg).
  • The average height for a 12 year old girl is 59.0″ (149.8 cm).
  • The average weight for a 12 year old male is 88.0 lb (39.9 kg).
  • The average height for a 12 year old boy is 58.7″ (149.1 cm).

How Much Should 14-Year-Olds Weigh?

  • The average weight for a 14 year old female is 105.0 lb (47.6 kg).
  • The average height for a 14 year old girl is 62.5″ (158.7 cm).
  • The average weight for a 14 year old male is 112.0 lb (50.8 kg).
  • The average height for a 14year old boy is 64.5″ (163.8 cm).

Average Weight & Height For A 15-Year-Old.

  • The average weight for a 15 year old female is 115.0 lb (52.1 kg).
  • The average height for a 15 year old girl is 62.9″ (159.7 cm).
  • The average weight for a 15 year old male is 123.5 lb (56.0 kg).
  • The average height for a 15 year old boy is 67.0″ (170.1 cm).

Average Weight & Height For A 16-Year-Old.

  • The average weight for a 16 year old female is 118.0 lb (53.5 kg).
  • The average height for a 16year old girl is 64.0″ (162.5 cm).
  • The average weight for a 16 year old male is 134.0 lb (60.8 kg).
  • The average height for a 16 year old boy is 68.3″ (173.4 cm).

Frequently Asked Questions

measure average bmi

As A Parent, How Can You Talk To Your Teen About Eating Disorders?

Be aware that eating disorders are becoming more prevalent among teenagers.

First, take your child seriously when they talk about their feelings. Secondly, educate yourself on the warning signs of anorexia and bulimia.

Finally, make it a priority to establish healthy habits early on by encouraging your children to eat more nutritious foods and find an active hobby they enjoy.

This will empower them to make good choices for themselves throughout their lives.

How Can A 13 Year Old Lose Belly Fat?

A 13-year-old can lose belly fat by making wise lifestyle changes.

It is recommended to start with one hour of moderate exercise per day, five days a week.

In addition to exercise, they should be eating nutritious meals. Replace fast processed food with healthy snacks is essential.

If you’ve never spoken about this before, your child might be feeling anxious about their body, or more likely, is just not educated on maintaining a healthy weight. There are many ways you can help your child get in good shape and feel good about themselves.

Right now, the main thing is education and support–you don’t want to put too much pressure on them yet. If they need help, direct them to a doctor or nutritionist for professional help.

At the end of the day, your child should be healthy and happy, and those are the two most important factors.

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