Body Mass Index Calculator

Калькулятор индекса массы тела

Body Mass Index Calculator

Initial data


Formula for calculating BMI:

BMI Weight, kg

Height (m)2

Classification of obesity by BMI (WHO, 1997)

Classification Body mass index, kg/m2 (Quetelet’s index BMI) Risk of comorbidities
Underweight less than 18.5 Low (increased risk of other diseases)
Normal body weight 18,5-24,9 normal
Overweight (pre-obesity) 25,0-29,9 Increased
Obesity I degree 30,0-34,9 High
Obesity II degree 35,0-39,9 Very high
Obesity III degree 40,0 and more Extremely high

It should be noted that the Quetelet index is not suitable for assessing the body weight of people with developed muscles (athletes, bodybuilders, etc.), and people under 20 years old or over 65 years old, pregnant and lactating women.

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