Precision Metric

Body Fat Calculator

Use the scientifically validated US Navy Method to estimate your body fat percentage. Precision without expensive hardware — just a measuring tape.

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Your Measurements

Height (cm)

Neck Circumference (cm)

Waist Circumference (cm)

Hip Circumference (cm)

Only required for females

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1. Neck

Measure at the narrowest point. Tilt head slightly forward.

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2. Waist

At the navel level. Stand relaxed, don't pull in your stomach.

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3. Hip

For females at the widest point of the glutes.

Estimated Body Fat

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Enter your measurements and click calculate.

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check_circleThe Navy Method has an accuracy of approx. 3-4% compared to DEXA scans.
check_circleMeasure in the morning right after waking up for consistent data.
check_circleBody fat percentage is a better health indicator than BMI alone.