To find out if your BMI or someone else’s BMI, the calculation process is simple. You can do this yourself by using a handheld calculator or do this online via websites or apps containing body mass index calculators.
To arrive at the result yourself, you simply divide your weight in kilograms by the square of your height in metres. Or simply input your height and weight in an app or website and the BMI results will flash on your screen.
If the numbers show that your BMI is above normal or below the normal range, you should get yourself checked by a doctor at least once every six months or at least once a year.
A number between 18.5 to 25 kg/m2 is considered normal BMI. Less than 15 is classified as very severely underweight, from 15 to 18 is categorized as underweight, from 25 to 30 is considered overweight. From 30 to 40 is classified as obese and above 40 as very severely obese.