Recommended Bmi Calculator. However, if the wrist size is more or less than 7 inches, you add or subtract 10% of ideal body weight. It is useful to consider bmi alongside waist circumference, as waist measurement helps to assess risk by measuring the amount of fat carried around your middle.

It is used for both men and women, age 18 or older. A crucial remark about this formula is that. To calculate the bmi using pounds, divide the weight in pounds by the height in inches squared and multiply the result by 703.