How much of your Weight is Due to Excess Fat?

Your Body Mass Index (BMI) is a measure to help assess if you're at a healthy weight and if weight loss is necessary. It can calculate the amount of fat your body consists of and help you decide what is a healthy weight for you.

BMI Calculator

Weight: lbs.
Height: Ft. In.

Body Mass Index

According to the Panel on Energy, Obesity, and Body Weight Standards published by American Journal of Clinical Nutrition, your category is:

Risk of Associated Disease According to BMI and Waist Size

BMI   Waist less than or equal to
40 in. (men) or
35 in. (women)
Waist greater than
40 in. (men) or
35 in. (women)
18.5 or less Underweight -- N/A
18.5 - 24.9 Normal -- N/A
25.0 - 29.9 Overweight Increased High
30.0 - 34.9 Obese High Very High
35.0 - 39.9 Obese Very High Very High
40 or greater Extremely Obese Extremely High Extremely High

Women: If your Body Mass Index is 27.3 or higher, you are defined as overweight.
Men: If your Body Mass Index is 27.8 or higher, you are defined as overweight.

If you know how much of your weight is made up of fat, it can help you determine the amount of fat loss you need to achieve as opposed to just simple weight loss. Many people choose to use their Body Mass Index as their measurement for their diet and weight loss goals.