Body Mass Index (BMI) Calculator
Enter your height and weight below to find your body mass index (BMI). This number is commonly used to judge whether your weight is healthy—or whether extra weight increases your risk for health problems, such as cancer.
Calculate Your BMI
What the Numbers Mean
|30 and higher||Obese|
Even a small weight loss (10% of your current weight) lowers the risk of several diseases. People who are overweight or obese have a greater chance of developing certain cancers—including breast cancer for women over age 50—as well as high blood pressure, high blood cholesterol or other lipid disorders, diabetes, heart disease, and stroke.
A doctor can further assess your personal risk for serious weight-related diseases by considering your BMI, waist size, and other measures of health such as blood sugar levels.