IF BMI Result ==
< 20 = underweight
20-25 Normal
25-30 overweight
30 - 40 Grade 1 obese
> 40 Grade 2 obesity

This measurement needs a great deal of care because it can be so misleading. Some of the most athletic and
fittest people will record a high BMI because muscle always weighs heavier than fat. If you have not done
much exercise in the past then it can help but if you are fit then use this measurement with extreme caution.

To measure take your weight in KGS and divide it by your height in metres = result1.
Then divide result1 by your height in metres again which gives you your BMI.

In conclusion there are far better ways to determine if you are overweight than BMI.