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What Body Mass Index Calculator Can Tell You

Body mass Index calculator

What is Body Mass Index?

The Body Mass Index quantifies an individual’s body fat in relation to its height and weight.

However, the BMI is only applicable to adults men and women between age 18 and 65 years and exclude children and pregnant women.

How to Calculate Your Body Mass Index Manually

The BMI is a function of an adult’s weight and height and can be calculated using the formula:

BMI= WEIGHT(kg)/HEIGHT(cm)^2 =WEIGHT/HEIGHT(IN)^2*307

You can read more about the BMI here.

Why Body Mass Index Is Important

BMI is widely accepted as a good indicator of whether an individual is underweight, overweight or has a normal weight given his height.

It is also used by health professionals to assess an individual’s risk for chronic diseases.

What Is a Normal Body Mass Index Range

Body mass index vector illustration from underweight to extremely obese. Man silhouettes with different obesity degrees. Male body with different weight.

The BMI calculated value can be interpreted as follow:

Underweight: Less than 18.5

Normal weight:  18.5 to 24.9

Overweight: 25 to 29.9

Obese: 30 or greater

 Limitations of Body Mass Index Calculator

While convenient, the BMI has some serious limitations and can lead to inaccurate measures.

In fact, the Body Mass Index Calculator doesn’t differentiate between fat and muscle and doesn’t take into consideration fat percentage and the loss of height with aging.

Thus, It tends to classify overweight individuals with smaller frames as normal and normal individuals with bigger frames as overweight.

Related: Basal Metabolic Rate Calculator

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