Determining the BMI

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What is BMI?

 

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BMI is the short form of the term Body Mass Index. It refers to the screening tool which can help individuals to determine whether he/she is overweight, underweight or healthy according to the height and weight.

 

It’s the quickest and simplest way to screen the fitness of a person. The range of healthy BMI score is among 20-25. So, if someone has a score below the 20, then it necessarily signifies that he/she is underweight. This underweight problem can pave the way to malnutrition problem after a certain period of time.

 

On the other hand, if someone lays in the values greater than 25, then it signifies the overweight problem. This problem can lead the way to numerous diseases likely obesity, diabetes, cardio vascular etc.

 

How to measure BMI

 

An organization named ’Belgium Statistician Adolphe Quetelet’ was responsible to develop the BMI theory/formula nearly 150 years ago. From then to now on it is one of the widely recognized formulas around the world to determine one's fitness. The calculation can be done by couple of ways, such as

 

  1. Metric BMI formula
  2. Imperial BMI formula

 

These two ways are very simple and easy way to determine the BMI. Now, here I am going to discuss briefly the catch of this formula. You can easily learn it if you can spend some time to read over.

 

1. Metric BMI formula

 

In this particular formula, BMI is measured dividing weight (kilograms) by height in Meters squared (Kg/m²). The formula in words-

Weight (kg)/ Height (m²)

 

2. Imperial BMI formula

 

In this formula, first of all, you have to multiply your weight in pounds by 703. Then divide the number by your height in inches squared.

Weight (lbs) ×703/ Height (inches²)

 

BMI categories

 

I have already discussed the catch for understanding one's condition in BMI. If it was not enough to get to the point, then you can take a look at the following table given below. The standard weight status categories associated with BMI ranges for adults are shown in the table

 

BMI

Weight status

Below 18.5

Underweight

18.5-24.9

Healthy

25.0-29.9

Overweight

30.0 and above

Obese

 

The World Health Organization (WHO) international classification of adult underweight, overweight and obesity according to values of BMI

 

Classifications

BMI (kg/m2)
principal cut-off points

BMI (kg/m2)
additional cut-off points

Underweight

<18.50

<18.50

Severe thinness

<16.00

<16.00

Moderate thinness

16.00-16.99

16.00-16.99

Mild thinness

17.00-18.49

17.00-18.49

Normal range

18.50-24.99

18.50-22.99
23.00-24.99

Overweight

≥25.00

≥25.00

Pre-obese

25.00-29.99

25.00-27.49
27.50-29.99

Obese

≥30.00

≥30.00

Obese class I

30.00-34.99

30.00-32.49
32.50-34.99

Obese class II

35.00-39.99

35.00-37.49
37.50-39.99

Obese class III

≥40.00

≥40.00

 

 

 

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