Body Fat Percentage Calculator
Estimate your body fat percentage quickly and accurately with our research-backed calculator

Using the scientifically-validated Jackson & Pollock body density equations, our calculator provides reliable results from just 4 key measurements. All you need is a simple skinfold caliper to get started.

Skinfold caliper illustration

Recommended tool: Skinfold caliper for precise measurements

What is your gender?
Please select the option that matches your biological sex
What is your age?
years

Enter Your Skinfold Measurements

Please provide your skinfold thickness measurements in millimeters. Accurate measurements are key to calculating your body fat percentage.
Triceps
mm
Suprailiac
mm
Umbilicus
mm
Thigh
mm

Results

Our body fat calculator is open-source to ensure transparency and accuracy. You can check out the source code for it on GitHub.

Oops! It looks like some information is missing or incorrect.

Please check that you’ve entered all required measurements in millimeters, and ensure they are valid numbers. Each value helps us accurately calculate your body fat percentage.

Body Fat Analysis

%

Your body fat percentage

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