Body Fat % Estimator

Estimate your body fat using the US Navy circumference method — no expensive equipment needed. Measure neck, waist (and hip for women), and height in inches or cm.

Height (inches)

Stand straight, measure top of head

Neck (inches)

Just below larynx, slight downward slope

Waist (inches)

At navel (men) / narrowest point (women)

Body Fat %

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