The average weight that a 13-year-old have the right to vary, relying on a variety of factors. Puberty, because that example, deserve to significantly impact a children weight and also appearance, and the timing of these alters is various for boys and girls.

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The Centers for an illness Control and also Prevention (CDC) have set guidelines for healthy weight and also body mass index (BMI) in children.

These guidelines can assist doctors and also parents or caregivers monitor a child’s growth and also determine whether they room underweight or overweight, for example.

This short article will comment on the mean weights because that 13-year-old boys and also girls, and BMI and other factors to consider.


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Share ~ above PinterestThere are multiple factors that can affect average weight.
According come the CDC, many 13-year-old girl weigh in between 76 and 148 pounds (lb).

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

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

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

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

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

Average weight for boys

According to the CDC, most 13-year-old boys weigh in between 75 and 145 lb.

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

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

On the various other hand, if a young in this period group weighs more than the 95th percentile, the doctor may diagnose obesity. However, they take elevation into consideration.

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

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

BMI
Share on PinterestWhen calculating a son or teenager’s BMI, it is vital to encompass their age.

BMI is a means to estimate body fat percentage. The calculation incorporates weight and also height. A high BMI can indicate high amounts of human body fat. It can likewise indicate an boosted risk that weight-related health and wellness issues.

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

Calculation the BMI is various for adults and children. In children and also teenagers, BMI takes period into account, and doctors describe it “BMI because that age.”

The CDC carry out a BMI calculator for children and teens. A person enters the child’s height, weight, and also sex. The results offer the BMI and also indicate whether the weight is in a healthy and balanced range.

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

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

A selection of determinants can impact the weight of a 13-year-old, including:

Puberty and development

Puberty is a time of physical readjust in children and teenagers. It requires the human body preparing for sex-related maturity.

Puberty commonly occurs in girls in between the ages of 10 and also 14 and also in boys in between the periods of 12 and also 16. The procedure can be really different because that boys and girls.

Puberty can cause height and weight in 13-year-olds to range broadly.

Genetics

Genetics, and also lifestyle characteristics, such as diet and also physical activity, pat a function in a child’s weight and body type.

Research argues that some genes room strongly linked with obesity.

Body composition

The many variables in a person’s body composition can influence just how much they weigh. For example, some civilization are much more muscular, and also they may weigh much more because muscle weighs more than fat. This might specifically affect strong children.

Also, taller youngsters are likely to weigh an ext than much shorter children, back this is not always the case. Since the BMI calculate takes elevation into account, that can offer a better idea of healthy ranges than weight alone.

Geographic location

The nation that a child resides in can contribute to your body composition, weight, and development.

These distinctions are due to factors such together socioeconomic status, access to nutritious foods, and social traditions.


If a boy is underweight, consuming much more calories may aid them reach a healthier weight. A physician can give advice about whether this is necessary and also the best means to go around it.

If a child’s weight falls into a selection of overweight or obesity, a doctor can offer advice around reaching a healthier weight. They may recommend to decrease caloric intake and increasing physical activity.

It is particularly helpful and important for family members of children with excessive weight to work toward healthy habits.

Childhood weight problems is associated with a higher risk of:

sleep apneahealth problems involving the bones and joints

Also, obesity can extend into adulthood. Researcher have uncovered links in between obesity in adulthood and also chronic health and wellness problems, such together heart disease, type 2 diabetes, and particular cancers.

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Any parental or caregiver that is concerned about a child’s development or advancement should consult a pediatrician.