Body Mass Index (BMI) Calculator

BMI Calculator

Body Mass Index (BMI) is a formula that measures body weight per surface area based on an individual's height and weight. 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.

Calculate Your BMI

Height: feet and inch(es)

Weight: lbs

Your BMI:


What the Numbers Mean

Below 18.5Underweight
18.5-24.9Normal weight
30-34.9Obese Type I
35-39.9Obese Type II
40 and HigherMorbidly Obese

Note: The BMI may not be accurate for people with greater muscle mass (such as athletes) or in older people and others who have lost muscle mass.