How does the US Navy method work?

It estimates body fat from height and neck, waist (and, for women, hip) circumferences using equations developed by the US Navy.

Where should I measure?

Neck just below the larynx; waist at the navel for men and at the narrowest point for women; hips at the widest point. Keep the tape snug but not tight.

What is a healthy body fat percentage?

The ACE categories put "fitness" at 14–17% for men and 21–24% for women, and "average" at 18–24% for men and 25–31% for women.

Why is the BMI-based estimate different?

It is derived from BMI and age only, so it can't tell muscle from fat. The tape method is usually more personal.

How do I use Body Fat Calculator online for free?

Using Body Fat Calculator is simple: 1) Go to the Body Fat Percentage Calculator tool on MyToolsHub — free, no login required. 2) Paste or type your data into the input area. The tool works entirely in your browser. 3) Configure any available options to get the exact output you need. 4) Your output appears in real time. Copy it to clipboard or download the result. No registration or software installation is needed.

Is Body Fat Calculator free to use?

Yes, Body Fat Percentage Calculator is 100% free with no hidden costs, no subscription, and no sign-up required. All features are available to every user at no charge.

Is my data safe when using Body Fat Calculator?

Absolutely. Body Fat Percentage Calculator processes all data directly in your browser. Your files and text never leave your device or get sent to any server. Your privacy is fully protected.

What is the best body fat percentage calculator online tool online?

MyToolsHub's Body Fat Percentage Calculator is one of the best free body fat percentage calculator online tools available online. It requires no installation, works on all devices, and delivers instant results without any sign-up.

Can I use us navy body fat formula without registration?

Yes. You can use Body Fat Calculator — and all 100+ tools on MyToolsHub — completely without creating an account. Just open the tool and start working immediately.

Do I need to install anything to use calculate body fat with tape measure?

No installation is required. Body Fat Percentage Calculator is a web-based tool that runs directly in your browser on any device — Windows, Mac, Linux, Android, or iOS.

Body Fat Percentage Calculator

Estimate your body fat percentage with the US Navy tape-measure method (neck, waist and hip) and a BMI-based estimate. See fat mass, lean mass and your ACE body-fat category. Metric or imperial units.