BMI stands for body mass index and is a method of calculating how much you should weigh based on your height. As an example, a BMI under 18 is considered being underweight, 18 to 25 is considered normal, 25 to 30 indicates being overweight; over 30 indicates being obese and those in the range of 35 and 40 are morbidly obese. Those over 40 who have associated serious medical problems which could significantly affect their ability to walk have a greater chance for obtaining Social Security benefits. These are cases where the claimant may weigh in the range of 300 to 400 pounds with occasional individuals weighing near over over 500 pounds.
There are various formulas for calculating BMI, but they are somewhat time consuming and may be difficult to understand. the easiest way to to install an app on your smart phone for calculating the BMI; just indicate your weight and height and your BMI should appear.