The Overweight  and BMI Calculator

BMI = Weight/ (Height x Height)

While the BMI formula is a good indication of a healthy weight for your height, it is only a general indication. The formula also does not consider your body composition, lifestyle or health condition – being muscular, an athlete or pregnant. The BMI doesn’t differentiate between muscle and fat, so the BMI result for an athlete with lean muscle mass can be misleading. The 23 BMI in the example above indicates that a 6’ person at 170 pounds is healthy; the same 6’ athlete at 230 pounds with a BMI of 31 would be obese. However, most of this person’s weight is probably muscle, which weighs more than fat.