BMI, or body mass index, is one of the most reasonable indicators of body fat, for both adults and children. The reason being- it is easy to calculate, non-invasive, simple, and inexpensive. It is essentially a simple mathematical formula that is used to measure the 'fatness', based on your height and weight. It is one of the most common screening tools to indicate obesity, simply because it shows the weight-height relationship and not just the body weight alone. But, it is also important to note that your BMI does not take into account your age, sex, ethnicity or muscle mass.

So, what's your number?

Don't worry! It's not some complicated arithmetic equation that only a mathematics major can solve. In fact, the formula is quite simple, really. Just divide your weight in kilograms by your height in meters squared.

That is,

(weight in kilograms) / height in meters2 = Body Mass Index

If your BMI is below 18.5, then you come in the "underweight" category. This is an issue of concern, and you may want to reach out to your doctor to determine the cause.

If your BMI is between 18.5 and 24.9, you come under the "normal weight" category.

If your BMI is above 24.9, then you come under the "overweight" category, and if it is above 30, then you would be classified as "obese". Again, if you get these readings, then reach out to your doctor to determine the cause and work out a healthy plan.

Remember, if you are overweight or obese, you are at a higher risk of: