Body Mass Index (BMI) Calculator The extra weight can result in elevated total cholesterol levels and blood pressure levels that are high, and an increased risk of coronary heart disease. Weight gain increases the chance for developing risk factors for heart problems, such as high blood cholesterol, high blood pressure, and diabetes.En espanol The most common measure of obesity is measured by weight index (BMI) it is calculated as a ratio of kilograms divided by the height measured in meters (BMI =W [kg]/H [m 2 *). As per the National Heart, Lung, and Blood Institute (NHLBI), being overweight is defined as having a BMI above 25. If you have a BMI that is greater than 30 are thought to be obese. Find out what is your BMI via the below calculator. After you've determined the BMI, you can take that number and then calculate your body composition in the table below. Healthy weight BMI calculator Find out if you or your child are of a healthy weight. Please note: BMI i...