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Body Mass Index (BMI) Calculator
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Body Mass Index (BMI) Calculator
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Extra weight is thought to lead to increased total cholesterol levels, high blood pressure, and an increased risk of coronary artery disease. Obesity increases your chances of developing other risk factors for heart disease, especially high blood pressure, high blood cholesterol, and diabetes.

Many doctors now measure obesity in terms of body mass index (BMI), which is a formula of kilograms divided by height in meters squared (BMI =W [kg]/H [m2]). According to the National Heart, Lung, and Blood Institute (NHLBI), being overweight is defined as having a BMI over 25. Those with a number over 30 are considered obese. You can find out your BMI by using the calculator below. Then, take that value and find your body composition in the table below the calculator.

 
Body Mass Index
  Body mass index (BMI) is a formula to assess your body weight in relation to your height. This formula gives a measure of your body composition and has been shown to be an effective predictor of body fat. To calculate your BMI, enter your height and weight below.

Enter your height in inches: or centimeters:
Enter your weight in pounds: or kilograms:
Your result:  

Body Composition Body Mass Index (BMI)
Underweight Less than 18.5
Normal 18.5 - 24.9
Overweight 25.0 - 29.9
Obese Greater than 30.0
 
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