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BMI Calculator

Calculate your BMI

This calculator determines your Body Mass Index, based on your weight, and height. Please fill out your “Weight” and “Height” in the below fields, then hit “Calculate BMI Information” to see your BMI and your optimal weight range.

  • Please enter a number greater than or equal to 1.
  • Please enter a number greater than or equal to 1.
  • Scroll down to view what your results mean.

Morbidly Obese

35<

Weight is very likely to be impacting normal body function and seriously affecting health.

Obese

30 – 34.9

Weight is very likely to be impacting normal body function and affecting health.

Overweight

25 – 29.9

Weight is likely to be impacting normal body function and affecting health.

Healthy

18.5 – 24.9

Weight is not likely to be impacting body function and health.

Underweight

<18.5

Weight may be too low for regular body function and may indicate health problems associated with malnutrition.

About Your Results

Body mass index (BMI) is an estimate of body fat based on height and weight. While finding your BMI indicates if health advice should be sought out, it is an estimate and does not differentiate between body fat and muscle mass or between age, gender or ethnicity. It is recommended that you check your BMI as well as your Waist-Hip Ratio, and then get in touch with Dr Watson to find out what the results mean for you personally.

If you are overweight (BMI over 25) you may develop:

  • Cardiovascular (heart and blood circulation) disease
  • Gall bladder disease
  • High blood pressure (hypertension)
  • Non-insulin dependent diabetes mellitus
  • Osteoarthritis – this is induced by the excess weight of obesity and can be a major problem. If inadequately managed it can be a barrier to adequate weight loss.
  • Certain types of cancer, i.e. breast, colon, endometrium and prostate.
  • Social implications that are often neglected.