To calculate your BMI, you must know your weight in pounds (measured with underwear but no shoes) and your height in inches. Follow this simple three-step method:

• Multiply your weight by 703.

• Divide the result by your height in inches.

• Divide the result again by your height to get your BMI.

For example: If you are five-foot-seven (or 67 inches tall) and weigh 170 pounds, you would do the following:

• Multiply 170 × 703 to get 119,510

• Divide 119,510 by 67 to get 1,784

• Divide 1,784 by 67 to get 26.6

In this example, the BMI is 26.6. This BMI falls in the overweight category.