Divide that by your height in inches, squared:īMI = (your weight in pounds x 703) ÷ (your height in inches x your height in inches)įor example, if you weigh 120 pounds and are 5 ft. When using pounds and inches, the formula needs to be altered slightly. The actual formula to determine BMI uses metric system measurements: weight in kilograms (kg) divided by height in meters, squared (m 2). tall is considered overweight (BMI is 25 to 29) if he weighs between about 174 and 202 pounds, and is obese (BMI is 30 or more) if he is closer to 209 pounds or more. She is considered obese (BMI is 30 or more) if she is closer to 174 pounds or more.Ī man who is 5 ft. tall is considered overweight (BMI is 25 to 29) if she weighs between about 145 and 169 pounds. This table shows us that a woman who is 5 ft. At the top of the chart you can see your BMI, and at the bottom of the chart you can see which category you fit into – healthy weight, overweight, or obese: To use the table below, find your height on the left side of the chart, then go across to the weight that is closest to yours. There are also several online BMI calculators, such as this one on our website. Charts and online calculatorsĬharts and tables, such as the one below, are one easy way to figure out your BMI. BMI is often used as a screening tool to decide if your weight might be putting you at risk for health problems such as heart disease, diabetes, and cancer.īMI is used to broadly define different weight groups in adults 20 years old or older. In general, the higher the number, the more body fat a person has. BMI is a number based on your weight and height. Body mass index, or BMI, is a way to help you figure out if you are at a healthy weight for your height.
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