Body Fat Percentage Calculator – Estimate Your Body Composition

Knowing your body fat percentage is one of the most accurate ways to measure your fitness level. Unlike BMI, which only considers weight and height, this calculator estimates your body fat % using your weight, height, age, gender, and waist circumference—giving you a clearer picture of your body composition.

What Is Body Fat Percentage?

Your body fat percentage represents how much of your total body weight is made up of fat. This includes essential fat (vital for health) and storage fat. Understanding your body fat helps you:

Monitor fat loss and muscle gain progress
Set more accurate fitness goals
Improve long-term health and performance

What You’ll Need to Enter:

Weight (kg): Your current body weight
Height (cm): Your height in centimeters
Age (years): Your age
Gender: Male or Female
Waist Circumference (cm): Measure around your abdomen, just above the navel

This calculator uses formulas derived from U.S. Navy and other anthropometric methods, which are widely trusted for body fat estimation.

Example Output:

Estimated Body Fat Percentage: 17.4%

This result reflects the proportion of your body that is fat versus lean mass (muscle, bone, water, etc.).

What Your Body Fat Percentage Means:

Category	Men (% Body Fat)	Women (% Body Fat)
Essential Fat	2–5%	10–13%
Athletes	6–13%	14–20%
Fitness	14–17%	21–24%
Average	18–24%	25–31%
Obese	25%+	32%+

Why Body Fat % Matters More Than Just Weight

You can be a “normal weight” but have a high body fat percentage—a condition known as skinny fat. That’s why tracking body fat % gives you a much better understanding of your health, strength, and fitness than weight or BMI alone.

Final Tip

Track your body fat over time—not just once. Combine it with strength training, cardio, and proper nutrition to lower fat and build lean muscle.

Measure smart. Train with purpose. Transform your body.