BMI (Body Mass Index) Calculator

BMI (Body Mass Index) Calculator

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What is BMI?

BMI, or Body Mass Index, is a commonly used metric for determining whether someone is at a healthy weight. It can be calculated by taking your weight in kilograms and dividing that number by the square of your height in meters. For example, if someone weighs 70 kgs and stands 1.7 meters tall, their BMI would be 24.2 (70 / 2.89 = 24.2).

The range of what qualifies as a healthy BMI varies from person to person; generally speaking, anything between 18 and 25 is considered healthy for adults over 20 years old.

If someone’s BMI falls below 18, they may be underweight or malnourished; if it goes above 25, they may be overweight or obese.

Limitations of BMI estimates

It is important to remember that BMI is only a guideline, and other factors should be taken into consideration when determining if someone’s weight is healthy.

It is also important to note that BMI does not take into account muscle mass or fat composition; for example, athletes may have a higher BMI due to their increased muscle mass. For this reason, other methods such as measuring waist circumference can be used in combination with BMI calculations to get a more comprehensive idea of someone’s overall health.

Ultimately, maintaining good health involves making sure your diet is balanced and you are getting enough exercise on a regular basis. Knowing your BMI can help you assess whether you need to make any changes in order to reach optimal health and well-being.

Remember to always talk to your doctor or healthcare provider before making any drastic changes in your lifestyle, as they can provide you with personalized advice to ensure you are achieving the best possible health outcomes for yourself.


The opinions expressed here represent the views of a practicing hormone specialist (endocrinologist) and must not substitute the advice of your health care provider. This blog post is written for a non-medical audience interested in learning more about hormonal disorders. The author has no commercial conflicts of interest to declare. Also, read our privacy policy.

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About the Author MyEndoConsult

The MyEndoconsult Team. A group of physicians dedicated to endocrinology and internal medicine education.

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