The mean weight that a 13-year-old can vary, relying on a number of factors. Puberty, because that example, deserve to significantly affect a children weight and appearance, and also the time of these alters is various for boys and girls.

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The Centers for an illness Control and Prevention (CDC) have collection guidelines for healthy and balanced weight and also body mass table of contents (BMI) in children.

These accuse can help doctors and parents or caregivers screen a children growth and also determine whether they room underweight or overweight, for example.

This write-up will discuss the mean weights for 13-year-old boys and girls, as well as BMI and also other components to consider.

Share top top PinterestThere space multiple components that can influence average weight.
According to the CDC, most 13-year-old girls weigh in between 76 and 148 pounds (lb).

The 50th percentile for load in this team is about 101 lb. This means that around 50% of girls this period weigh less than 101 lb.

If a 13-year-old girl weighs under the 5th percentile, a doctor might classify this together being underweight.

If a 13-year-old girl weighs above the 95th percentile, the doctor may diagnose obesity. However, elevation comes right into play, too.

Here room the percentiles by load for 13-year-old girls:

5th percentile76 lb
10th percentile80 lb
25th percentile89 lb
50th percentile101 lb
75th percentile116 lb
90th percentile135 lb
95th percentile148 lb

Average load for boys

According to the CDC, many 13-year-old guys weigh between 75 and also 145 lb.

The 50th percentile for load in this team is approximately 100 lb. This way that 50% of 13-year-old boys weigh less than 100 lb.

If a 13-year-old young weighs under the fifth percentile, a doctor may categorize this as being underweight.

On the other hand, if a young in this age group weighs an ext than the 95th percentile, the doctor might diagnose obesity. However, lock take height into consideration.

Here room the percentiles by weight for 13-year-old boys:

5th percentile75 lb
10th percentile80 lb
25th percentile88 lb
50th percentile100 lb
75th percentile116 lb
90th percentile133 lb
95th percentile145 lb

Share ~ above PinterestWhen calculating a kid or teenager’s BMI, it is necessary to encompass their age.

BMI is a means to estimate body fat percentage. The calculation incorporates weight and height. A high BMI have the right to indicate high quantities of body fat. The can also indicate an increased risk of weight-related health and wellness issues.

For a more accurate evaluate of human body fat, a person have the right to look right into skinfold measurements, underwater weighing, and bioelectrical impedance. However, these tests might be complex and expensive, and the results tend to correlate well v BMI.

Calculation that BMI is various for adults and also children. In children and also teenagers, BMI takes age into account, and doctors refer to it “BMI for age.”

The CDC administer a BMI calculator because that children and teens. A person enters the child’s height, weight, and also sex. The results give the BMI and indicate whether the weight is in a healthy and balanced range.

BMI, like mean weight, falls into percentiles. This can help parents, caregivers, and also pediatricians determine whether a son weighs a healthy and balanced amount for their age and also height.

Under the 5th percentileUnderweight
5th to 85th percentileHealthy weight
85th to 95th percentileOverweight
95th percentile or overObese

A variety of factors can influence the load of a 13-year-old, including:

Puberty and development

Puberty is a time the physical change in children and also teenagers. It involves the human body preparing for sex-related maturity.

Puberty generally occurs in girls between the eras of 10 and also 14 and also in boys between the ages of 12 and 16. The procedure can be very different because that boys and also girls.

Puberty can reason height and weight in 13-year-olds to selection broadly.


Genetics, and also lifestyle characteristics, such as diet and also physical activity, pat a role in a children weight and also body type.

Research says that some genes room strongly linked with obesity.

Body composition

The countless variables in a person’s human body composition have the right to influence just how much castle weigh. For example, some civilization are more muscular, and they might weigh more because muscle weighs more than fat. This might an especially affect strong children.

Also, taller youngsters are likely to weigh an ext than shorter children, return this is not constantly the case. Due to the fact that the BMI calculation takes height into account, the can provide a far better idea of healthy ranges 보다 weight alone.

Geographic location

The country that a child stays in can add to their body composition, weight, and development.

These differences are early out to determinants such together socioeconomic status, access to nutritious foods, and cultural traditions.

If a son is underweight, consuming an ext calories may aid them with a healthier weight. A doctor can provide advice around whether this is necessary and the best way to go about it.

If a children weight falls into a variety of overweight or obesity, a physician can provide advice about reaching a healthier weight. They might recommend to decrease caloric intake and increasing physics activity.

It is particularly helpful and important for households of youngsters with excessive weight to job-related toward healthy habits.

Childhood weight problems is connected with a higher risk of:

sleep apneahealth concerns involving the bones and also joints

Also, weight problems can prolong into adulthood. Researchers have discovered links in between obesity in adulthood and also chronic health problems, such together heart disease, form 2 diabetes, and certain cancers.

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Any parent or caregiver that is concerned around a child’s development or breakthrough should above a pediatrician.