Is BMI the same for adults and children?

The BMI is applied to both children and adults; however, it is not necessarily interpreted the same way. Our Alexandria bariatric surgeon explains: The same formula is used for both kids and adults, but when measuring children, age and gender are also factors that are considered in addition to height and weight.

Is BMI calculated differently for children and adults?

BMI is interpreted differently for children and teens even though it is calculated with the same formula. Due to changes in weight and height with age, as well as their relation to body fatness, BMI levels among children and teens are expressed relative to other children of the same sex and age.

Why is adult and child BMI different?

Know the difference between the BMI of adult and children? As children grow, the amount of body fat changes with age so BMI for children needs to be interpreted in relation to a child’s age. There are also gender differences. Therefore, for children and youth, BMI is age and gender specific.

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Is BMI the same for all ages?

For adults ages 20 years and older, BMI incorporates weight and height, but it does not take age or sex into account. A woman tends to have more body fat than a man with the same BMI. Likewise, an older person tends to have more body fat than a younger person with an equal BMI.

What is a normal BMI for a child?

For children, BMI is presented as a percentile, which plots the child’s BMI next to other children of the same age and sex. Falling between the 5th and 85th percentiles is considered normal and healthy.

What is overweight for my height?

Getting your current BMI is as easy as plugging your height and weight into a calculator. A result between 18.5 and 24.9 means you’re in the “normal” weight range for your height. If your result is under 18.5, you’re considered underweight. Between 25 and 29.9 means you’re considered overweight.

Why do kids have low BMI?

But a common reason older children are underweight is inadequate food intake. This may or may not be a result of picky eating. There are also several medical issues that can suppress appetite or block nutrient absorption.

What is an ideal BMI for a woman?

A BMI of 18.5–24.9 is considered normal or healthy for most women. Even though healthcare professionals can use BMI as a screening tool, they shouldn’t use it as a method to evaluate a person’s body fat levels or health status ( 32 ).

What weight do I need to be to have a BMI of 25?

4 in. tall is considered overweight (BMI is 25 to 29) if she weighs between about 145 and 169 pounds. She is considered obese (BMI is 30 or more) if she is closer to 174 pounds or more.

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Is a child’s BMI important?

Experts generally consider BMI for kids to be a good measure of body fat, at least among heavier children. But in some cases it might be misleading. Athletic kids, in particular, may fall into the overweight category when they are actually muscular. Your child’s BMI is important, but it is only a piece of the picture.

What is overweight for a 13-year-old?

For example, a 7-year-old boy who is 3 feet 11 inches (119 cm) tall would have to weigh at least 56.9 pounds (25.8 kg) ( BMI = 17.9) to be considered overweight, and a 13-year-old girl who is 5 feet, 3 inches (160 cm) tall would be considered obese if she weighed 161 pounds (73 kg) ( BMI = 28.5).

Does BMI change with gender?

Weight Status

While it uses height and weight, it also uses age and gender. That’s because male and female height and weight change during growth and development. For children, BMI is expressed as a percentile as compared to other children of the same age and gender.

What is the normal weight for a 13-year-old?

How Much Should My 13-Year-Old Weigh? The average weight for a 13-year-old boy is between 75 and 145 pounds, while the average weight for a 13-year-old girl is between 76 and 148 pounds. For boys, the 50th percentile of weight is 100 pounds. For girls, the 50th percentile is 101 pounds.

What is a normal weight for a 6 year old?

The average 6-year-old is about 45 inches tall and weighs approximately 45 pounds. Your child will double that weight by the time he reaches adolescence and grow to five feet tall or more!

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How do I know if I am overweight for my age?

Based upon your BMI, you can find out if you are:

  • Underweight: It means your BMI is less than 18.5.
  • In normal or healthy weight range: If your BMI is 18.5 to 24.9.
  • Overweight: If your BMI is 25.0 to 29.9.
  • Obese: If your BMI is 30.0 or more.

What is the average BMI of a 13 year old?

A BMI between 25 to 29.9 is considered overweight. Anything over 30 is considered obese. Normal BMI is between 18.5 and 24.9.

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