Is Body Fat Calculator free to use?

Yes, Body Fat Calculator is completely free to use. No signup or account is required. All processing runs in your browser, so your data stays private.

Is my data safe with Body Fat Calculator?

Absolutely. All processing happens locally in your browser. Your files and data are never uploaded to any server, ensuring complete privacy and security.

Calculators

Body Fat Calculator

Estimate body fat percentage using the US Navy method

Gender

Male

Female

Height (cm)

Neck (cm)

Waist (cm)

Estimated Body Fat

23.5%

Average

About Body Fat Calculator

Compute estimated body fat percentage using standard circumferences parameters. Implements Navy equations for males and females.

Helps you track changes in body composition over time without expensive calipers or scale metrics.

How to Use Body Fat Calculator

1Select gender and enter height, neck, and waist circumferences (and hip for females).
2Confirm values are in centimeters.
3Review estimated body fat percentage and fitness composition rating.

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Calculators