BMI is a measure of an adult man or woman’s body fat based on their height and weight. You don’t need a doctor to determine your BMI—you can simply use this Forbes Health calculator.

Calculate your Body Mass Index (BMI) for free using our online BMI calculator. Get accurate results in kg, cm, or feet for men, women, and kids. Includes age-based BMI for India and global users.

BMI = weight (in kilograms)/height (in meters)2 In the U.S., doctors need to do a little extra work to get inches and pounds. By that, he means multiplying the final result by 703.