BMI and your health

BMI and your health

Body Mass Index (BMI) is a measurement used to classify a person’s weight into broad categories such as a healthy weight range, overweight or obese. It compares a person’s weight to their height using the following formula:

weight (kg) / [height (m)]2

BMI is the most common way of measuring whether a person is overweight or obese. The risk of developing serious health consequences increases progressively as BMI increases.

To find out your BMI, please enter your height and weight details into the BMI Calculator. The results help you determine whether you should be taking action toward a healthier lifestyle.

BMI Calculator

Calculate your ideal BMI Healthy weight range.

BMI classification

18.5 - 24.9

Classifies you within a healthy weight range.

25 - 29.9

Classifies you as overweight. Being overweight can lead to obesity and the start of life-threatening health problems.


Classifies you as obese. This means that you are more at risk of developing:

  • Heart disease
  • High blood pressure
  • Type 2 diabetes
  • Skin problems
  • Infertility
  • Depression

Truth about diets & exercise

Many obese people have tried to repeatedly lose unhealthy excessive weight. However, studies show that while patients on stand-alone diets, exercise programmes or medication can lose about 10% of their body weight, they tend to regain two-thirds of it within 1 year, and almost all of it within 5 years.

*Franz MJ, VanWomer JJ, et al. Weight-Loss Outcomes: Systematic REview and Meta-Analysis of Weight-Loss Clinical Trials with a Minimum 1-Year Follow-Up. J Amer Diet Assos 2007; 7 (10): 1755-1767