Body Mass Index (BMI) Calculator

BMI (Body Mass Index) is a useful measure of overweight and obesity. It is calculated from your height and weight. BMI is an estimate of body fat and a good gauge of your risk for diseases that can occur with more body fat. The higher your BMI, the higher your risk for certain diseases such as heart disease, high blood pressure, type 2 diabetes, gallstones, breathing problems, and certain cancers.

According to the U.S. National Institutes of Health (NIH), BMI scores can be interpreted as follows:

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

Please note that the BMI score is only one way to assess your weight and has limitations. Any weight and health concerns should be discussed with your healthcare provider.

Enter Your Height ft in
Enter Your Weight lbs

Your Body Mass Index is:  
18.4 or less = underweight
18.5 to 24.9 = normal weight
25 to 29.9 = overweight
30 and over = obese