Body Fat Calculator

Body fat percentage0
Fat mass0
Lean Body Mass0
 
BODY FAT PERCENTAGE CATEGORIESMALEFEMALE
BODY FAT PERCENTAGE CATEGORIES
Essential fatMALE2-5%FEMALE10-13%
AthletesMALE6-13%FEMALE14-20%
FitnessMALE14-17%FEMALE21-24%
AverageMALE18-24%FEMALE25-31%
ObeseMALE25%+FEMALE32%+

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About this Body Fat Calculator

Our Body Fat Calculator is a precise, minimalist tool designed to help you better understand your body composition. By utilizing the U.S. Navy method, which incorporates specific body circumference measurements, this calculator estimates your body fat percentage, fat mass, and lean body mass more effectively than simple weight-based metrics.

This tool is designed for clarity and efficiency. Simply enter your physical measurements, and the calculator will instantly determine your estimated body fat level. It is fully responsive and operates entirely on your device, ensuring that your sensitive health data is never stored, tracked, or sent to a remote server.

Frequently Asked Questions

How does this body fat calculator work?

This tool uses the U.S. Navy method, a widely recognized estimation formula. By inputting your gender, height, and specific body circumference measurements (neck, waist, and hip for females), it calculates your body fat percentage and provides a breakdown of fat mass versus lean body mass.

Why use circumference measurements?

Unlike BMI, which only considers height and weight, circumference measurements provide a better indication of body fat distribution. This method offers a more accurate estimation of your body composition by accounting for variations in body shape.

Is my data private?

Absolutely. All calculations are performed locally in your browser. We do not store your personal measurements, and no cookies are used to track your health data. Your inputs remain private to your machine.

Is this calculator a medical diagnosis?

No. While this tool provides a useful estimation for tracking fitness progress, it is not a substitute for professional medical advice, diagnosis, or treatment. For specific health concerns, please consult with a healthcare provider.