BMI Calculator

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kg/m2

BMI categories table

BMI Category BMI Range
(kg/m2)
Health risk
Underweight 18.4 and below Malnutrition risk
Normal weight 18.5 - 24.9 Low risk
Overweight 25 - 29.9 Enchanced risk
Moderately obese 30 - 34.9 Medium risk
Severely obese 35 - 39.9 High risk
Very severely obese 40 and above Very high risk

BMI formula

The BMI (Body Mass Index) in (kg/m2) is equal to the mass in kilograms (kg) divided by the square height in meters (m):

BMI(kg/m2) = mass(kg) / height2(m)

The BMI (Body Mass Index) in (kg/m2) is equal to the mass in pounds (lbs) divided by the square height in inches (in) times 703:

BMI(kg/m2) = mass(lb) / height2(in) × 703

 


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