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Getting on a scale only shows you how much your way, not your BMI. See more weight loss tips pictures.

To find out how much you weigh, you simply step on a scale. But your weight alone can't tell you whether you're underweight, healthy, or overweight. If you're 6'4" and you weigh 200 pounds, you're probably at a healthy weight; but if you're 5'9" and weigh 200 pounds, you're probably overweight.

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Because both height and weight are important to help determine if someone is overweight, scientists came up with a mathematical formula called Body Mass Index (BMI). This simple measurement helps doctors determine whether their patients are at a healthy weight or need to lose or gain a few pounds.

In this article, you'll learn how the BMI is calculated and what the numbers mean to your health.

 

For more common questions and expert answers on fitness and exercise, visit Sharecare.com.