What is Body Fat Percentage and how to calculate it?

Fat Percentage Calculator

Please input your details :


Male Female
Weight(in kgs)
Height (in cms)
Age(in years)

Body fat % Ranges for woman

lady fat percentage

For visible abs, we need to decrease our body fat percentage. As a general statement, males can see abs below 15% body fat and females can see below 23 – 25%. We should also understand that essential body fat is necessary to maintain life and reproductive functions. The percentage of essential body fat for women is greater than that for men, due to the demands of childbearing and other hormonal functions.

Fat Percentage

Fat percentage is the ratio of body fat mass upon entire body weight.

Fat % = [ Body fat weight / Total weight ] * 100

This is important to know because, for BMR calculations we need to take into account lean body weight and not total body weight. Let me explain, if a person weighs 80 kgs, but he carries a lot of fat say 25%, that means:

Total weight: 80 kgs

Fat % : 25%

Body fat weight = 25*80/100 = 20 Kgs

Lean body mass = 80 – 20 = 60 Kgs

Obviously Energy requirements by 60 Kgs persom will be less than 80 Kg person. Makes Sense?

How to calculate my Fat Percentage ?

There are several techniques for doing this, but we will explain BMI method.

Note: All the methods are approximation methods, for accurate measurements, one needs to get their Body composition Analysis test done.

Kids Body Fat % = 1.51 * BMI – 0.7 * Age (yrs) – 3.6 * Gender + 1.4

Adult Body Fat % = 1.39 * BMI + 0.16 * Age (yrs) – 10.34 * Gender – 9

Check if your body fat percentage from our calculator matches with the visual ranges. Let us know in the comments.

Now that you know your bodyfat%, you might be interested in calculating your BMR !

3 thoughts on “What is Body Fat Percentage and how to calculate it?”

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