Body Fat Index

Determine your body fat percentage

Body fat percentage is one of the most hotly debated topics in the fitness industry. People are often concerned about it, because they think that a high percentage means they are unhealthy, but a low percentage means they are in great shape. And to an extent, this is true. So what is this percentage and how do we calculate it?

Body fat is the type of fat that makes up the majority of your weight. The key to losing body fat is to be able to determine how much fat you have on your body. There are many methods to determine body fat percentage. Today we will be using a simple body fat index calculator to see your body fat percentage.

Use a tape measure to determine your waist, hip and neck circumference. Then input your gender and measurements below to receive a body fat index based on average values. The body fat index is not an indicator of fitness level since the calculation is made with no regard to height or weight.

Body Fat Percentage Calculator

Calculate
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Your Body Fat is
?
These calculations are based on averages.



Body Fat Percentage Categories

Classification Woman (% Fat) Men (% Fat)
Essential Fat 10-12 % 2-4 %
Athletes 14-20 % 6-13 %
Fitness 21-24 % 14-17 %
Acceptable 25-31 % 18-25 %
Obese 32 % 25 %

The body fat index is a measure of body fat that takes into account a person’s gender, height, and weight. The formula was developed by Dr. William Castelli, a professor of epidemiology and nutrition at the Boston University School of Public Health and is based on the relationship between total weight and percentage body fat.

How to calculate Body Fat Index?

To calculate your body fat index, you’ll need to know your weight in pounds and your height in inches. Once you have those numbers, plug them into the following formula:

Body fat index = (weight in pounds x 703) / (height in inches x height in inches)

For example, if you weigh 150 pounds and are 5 feet, 5 inches tall (or 65 inches), your calculation would be as follows:

Body fat index = (150 x 703) / (65 x 65)
= 105310.9375 / 4225
= 24.96

This number is then plotted on a chart with body fat percentages to give you an idea of where you fall.

How to Reduce Body Fat Percentage?

The average body fat percentage ranges from 20-30% for women and 18-25% for men. These percentages can vary depending on a person’s ethnicity, muscle mass, and age. While most people are happy with a body fat percentage below 25%, there is growing awareness that many people are carrying too much body fat. Too much body fat can lead to health problems such as heart disease, stroke, diabetes, and some types of cancer. There are many ways to measure your body fat percentage. One of the way is to use Body Fat Percentage Calculator mentioned in this post.

There are many popular weight loss programs that target reducing your body fat percentage. Please visit our Exercise Page to learn more.




FAQ

What is a normal body fat index?

For a man, 2–5% fat is essential, 2–24% fat is considered healthy, and more than 25% classifies as obesity. For a woman, 10–13% fat is essential, 10–31% fat is healthy, and more than 32% classifies as obesity.

What body fat do you need to see abs?

The body fat percentage needed to see your pack of abdominal muscles falls somewhere around 14 to 20% for women and 6 to 13% for men. However, the ideal body fat percentage for abs can look slightly different per person, depending on how you carry weight, where you typically store fat and your fitness routine.

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