Body Mass Index (BMI)

Body Mass Index (BMI) is measure of body fat based on height and weight that applies to both adult men and women. We calculate your BMI to get an idea of whether you’re underweight, a healthy weight, overweight, or obese (for your height).

Your BMI is calculated by dividing your weight (in kilograms) by your height (in metres) squared.

Calculate Your BMI

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BMI Classifications

BMI RangeClassification
<19Underweight
19-25Ideal BMI
25-30Overweight
30-35Obese (Class I)
35-40Severely Obese (Class II)
>40Morbidly Obese (Class III)