• bmi calculator

BMI calculator

Obesity is officially determined by a person’s Body Mass Index. Body Mass Index (or BMI) is a calculation based on your weight and height. If your Body Mass Index is more than 25 then it is considered that you are overweight. Should your BMI be over 30 then you are starting to fall into the obese category and if your BMI is over 40, you are considered to be seriously obese.
There are clear and well publicised problems and health risks that are associated with being obese. If you are carrying too much weight, it can present a high risk of heart disease and diabetes, or a number of other health problems. Should you determine that your weight is drastically above what it naturally should be for your height and you are concerned about the associated health risks, a bariatric procedure may be just the solution for you.
You can calculate your BMI by filling in the following boxes. Input your weight and height and the calculator will generate an easy to read report on your general health status, based on the Body Mass Index formula.

BMI metric calculator


BMI imperial calculator


BMI indicator

  • Super obese
  • Morbidly obese
  • Severely obese
  • Mildly obese
  • Overweight
  • Healthy
  • Underweight

Your BMI Score

Body mass index (BMI) is a measure of body fat based on height and weight that applies to both adult men and women.

To calculate your BMI enter your weight and height using either metric or imperial measures.

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National Obesity Surgery Centre

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