Army Body Fat Calculator

Estimate body fat percentage using the classic military tape-test circumference method.

Measure snug against the skin, without compressing it.

Gender

Height (inches)

Please enter your height.

Neck Circumference (inches) Measure just below the larynx (Adam's apple)

Please enter your neck measurement.

Waist / Abdomen Circumference (inches) Men: at the navel. Women: at the narrowest point

Waist must be greater than neck measurement.

Hip Circumference (inches)

Please enter your hip measurement.

Estimated Body Fat

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How This Is Calculated

This tool uses the Hodgdon-Beckett circumference formula, the same underlying method behind military tape tests, using measurements in inches. It estimates body fat from neck, waist, height (and hip for women).

Source: Hodgdon, J.A. & Beckett, M.B. (1984), Naval Health Research Center — the circumference-based method later adopted for military body composition screening.

Note: Official body composition standards and maximum allowable body fat percentages are set by current service regulations and vary by age, gender, and branch. This tool provides a general estimate only — verify official standards with your unit or current regulation.

Frequently Asked Questions

Is this the official Army body fat test?

This tool uses the classic Hodgdon-Beckett circumference formula behind military tape tests, but official standards and allowable maximums are set by current service regulations and should be verified with your unit.

What units does this calculator use?

This calculator uses inches, matching how military tape tests are traditionally measured and recorded.

Where should I measure for the tape test?

Measure the neck below the larynx, and the waist/abdomen at the navel for men or narrowest point for women, keeping the tape snug but not compressed.

Last Updated: July 2026