Body Fat Percentage Calculator

Gender

Waist (cm)

Neck (cm)

Height (cm)

17.8%

What is Body Fat Percentage?

Body fat percentage is the total mass of fat divided by total body mass. It is a more accurate indicator of fitness and health risks than weight or BMI alone, as it distinguishes between fat and lean muscle mass.

US Navy Method

Our calculator uses the US Navy formula, which estimates body fat based on circumference measurements of the neck, waist, and (for women) hips, along with your height. It's affordable and widely used as an alternative to expensive scans.

Frequently Asked Questions

Health ranges vary by gender. For men, 14-17% is often considered 'fit'; for women, 21-24% is 'fit'. Essential fat is 2-5% for men and 10-13% for women.

Sustainable fat loss requires a consistent calorie deficit combined with resistance training and adequate protein intake to preserve lean muscle mass.

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