Our Body Mass Index Calculator measures your weight relative to your height and is a reliable indicator of body fatness.
The ideal body mass index falls in the range between 19 and 24.9. If your BMI is greater than 30, you are considered obese and may be a good candidate for weight-loss surgery.
The higher your body mass index, the greater your risk of disease, including heart disease, high blood pressure, sleep apnea and type 2 diabetes. More than 300,000 lives in the United States could be saved each year if everyone stayed at a healthy BMI. You can check yours by using the BMI calculator on this page and then reviewing the chart below to see if your health is at risk.