Calculating Your BMI

• 1). Write down your current body weight in pounds.
  
  
• 2). Write down your current height in inches. For example, a person who is 5 feet 3 inches tall has a total height in inches of 63.
  
  
• 3). Multiply the number in Step 2 by itself. For example if your height is 63 inches:
  63 x 63 = 3969
  
  
• 4). Divide your weight in pounds by the number in Step 3. For example, if you weigh 145 pounds:
  
  145 ÷ 3969 = 0.036
  
  
• 5). Multiply the product in Step 4 by 703. For example:
  
  .036 x 703 = 25.3
  
  

Determining Your Frame Size

• 1). Use the tape measure to measure your wrist in inches.
  
  
• 2). Assess your frame size according to the following chart:
  
  WOMEN
  Under 5'2" -- Large frame means a wrist size over 5.75"
  5'2"-5'5" -- Large frame means a wrist size over 6.25"
  5'5" or greater -- Large frame means a wrist size over 6.5"
  
  MEN:
  over 5'5" -- Large frame means a wrist size over 7.5"
  
  
• 3). If you have determined that you have a large frame, add 10 percent. This means that the healthy BMI for a person with a large frame is roughly 23-25.