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How do you calculate BMI?

BMI (Body Mass Index)

BMI (the so-called. Body Mass Index - BMI), the most commonly used indicator, which determines the correct weight. There are a number of indicators, but BMI is considered to be the most practical and is calculated in the same way for men and women.

The formula for calculating BMI

BMI should be calculated according to the following formula:

BMI = body weight (kg) divided by height squared (meters).
For example: A woman or a man 175cm tall (or 1.75m) weighs 70kg.

How, therefore, is BMI?

70 should be divided by 1.75 × 1.75 (1.75 × 1.75 = 3.0625), ie 70 divided by 3.0625 and get a result - 22,857 ... not exaggerate the accuracy and assume 22.9.


  • below 18.5 - underweight;
  • 18.5 - 24.9 - weight correct;
  • 25.0 - 29.9 - overweight;
  • 30.0 - 40.0 - obesity;
  • above 40.0 - obesity enormous.

Note! If your BMI is overweight, then the next thing you need to do is to determine obesity.

Types of obesity

Due to the distribution of fat we're talking about the following types of obesity:

Obesity a "pear" - (femoral - gluteal)

Occurs more often in women. Obesity hip (like pears) is a situation when additional folds are formed on the hips and buttocks (so just get fat women).
Note! From the place where the extra pounds are collected depends on the risk of cardiovascular disease.

Obesity type "apple" - (other terms: abdominal obesity, visceral)

In this case, the fat is mainly located within the abdominal cavity. This type of obesity affects mostly men.
Note! In obesity, type "apple" there is a greater risk of disease. Often there are metabolic disorders that lead to hypertension, coronary artery disease, diabetes and other cardiovascular diseases.
In postmenopausal women, on the cessation of the production of female sex hormones by the ovaries, the risk of abdominal obesity is becoming similar to those in men.

How to diagnose the type of obesity?

It should be used following measurements that will diagnose the type of obesity and to assess the distribution of body fat:

  • abdominal circumference;
  • hip circumference;
  • calculation of WHR.

When you know your measurements (waist and hips), we can calculate the WHR. It is very easy, you just have to stand freely, tailor tape measure to measure the narrowest place in the deck, and then measure the widest point of your hips.

The next step is dividing the waist circumference by the hip circumference. And we finished result :)
Note! WHR = waist circumference (cm) \ hip circumference (cm)
Correct results should not be higher than 0.8 for women and 0.94 for men. If WHR exceeds acceptable standards, this proves abdominal obesity, which is dangerous for the body.


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