Body Fat Percentage Calculator

Calculate your body fat percentage accurately using the US Navy method with gender-specific inputs.

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Worked Example & Common Values

Below is a sample worked calculation demonstrating how Body Fat Percentage Calculator processes input data instantly inside your browser.

Sample Input Original Value: 80, New Value: 120 (Calculate percentage increase)

Computed Result Percentage Increase: +50.00%

Execution Mode Client-Side In-Browser JS

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About This Tool

This Body Fat Percentage (BFP) Calculator uses the proven US Navy method to estimate your body fat percentage based on key measurements. Simply enter your gender, height, weight, waist, neck, and (for females) hip circumference, along with your age, to get an accurate BFP calculation. The tool provides your result as a percentage, categorizes it according to health standards, and offers personalized health recommendations. All calculations are performed client-side for instant results without server delays.

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How to Use

Select your gender (Male or Female).
Enter your height in centimeters or inches.
Enter your weight in kilograms or pounds.
Measure and enter your waist circumference.
Measure and enter your neck circumference.
If female, measure and enter your hip circumference.
Enter your age.
Click 'Calculate BFP' to see your body fat percentage, category, and health tips.

Frequently Asked Questions

Find Quick Answers

What method does this calculator use?

This calculator uses the US Navy method, which is a widely accepted formula for estimating body fat percentage based on circumference measurements.

Why do I need to provide gender?

Body fat distribution differs between males and females, so the calculation formula includes gender-specific variables for accuracy.

Are the measurements in metric or imperial units?

The calculator accepts both metric (cm, kg) and imperial (inches, pounds) units—just enter your values and the tool handles conversions automatically.

What do the BFP categories mean?

Categories range from Essential Fat to Obese, based on standard health guidelines. Results help assess fitness levels and health risks.

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