BMI Calculator

BML calculator

Body mass index (BMI) is an internationally recognised standard to classify the body weight of adults. Although BMI is not a perfect measure, it is the most useful and valid for adults.

As the BMI calculation doesn’t take fat or muscle into account, you should measure your waist as well to get the full picture. BMI is not an appropriate measure for children.

Waist size showing increased risk of chronic disease

Gender Increased risk Greatly increased risk
Men 94 cm or more 102 cm or more
Women 80 cm or more 88 cm or more

Measuring your waist

To measure your waist:

  • take off any bulky clothing, loosen your belt and empty your pockets.
  • stand with your feet shoulder-width apart.
  • wrap a tape measure around your belly – in line with your belly button, and loose enough to fit one finger inside the tape.
  • These measurements do not apply to children and pregnant women.
<18.5 Underweight
18.5 to 24.9 Healthy weight
25 to 29.9 Overweight but not obese
30 to 34.9 Obese class I
35 to 39.9 Obese class II- Severe Obesity
40 to 49.9 Obese class III- Morbid Obesity
>50 Obese Class IV – Super Obesity

Use our calculator below to calculate your BMI.

calculate your bmi


The body mass index (BMI) is a value derived the mass (weight) and (height) of an individual.

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