Body mass index (BMI) is measure of body fat based on height and weight that applies to both adult men and women.

• Enter your weight and height using English or Metric measures.
• Click on compute and your BMI will appear in the heart of the figure.
• See the National Heart, Lung and Blood Institute page "Assessing Your Risk" for the health risks associated with overweight and obesity and Limitations of the BMI.

BMI Categories:

• Underweight = <18.5
• Normal weight = 18.5-24.9
• Overweight = 25-29.9
• Obesity = BMI of 30 or greater

Go to the BMI tables