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KAMURAROOTED IN WELLNESS
Health tools / Metabolic

Body fat estimate (US Navy)

A tape-measure estimate of body fat percentage.

Published formula · ~2 min · Reviewed October 2026 · Scored on your device

Sex assigned at birth
The equations differ, and the female equation also needs a hip measurement.

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WHAT THIS DOES NOT DO
  • This is an estimate from tape measurements, not a scan. Expect a margin of error of several percentage points against DEXA.
  • The equations were derived in US military personnel and are less accurate at the extremes of body size.
  • Healthy body fat ranges differ by sex and rise with age; the bands above are general, not personal targets.
SOURCE & LICENCE

Hodgdon JA, Beckett MB. Prediction of percent body fat for U.S. Navy men and women from body circumferences and height. Naval Health Research Center, Report No. 84-11. 1984.

The US Navy circumference equations were developed by the Naval Health Research Center and are published. No licence applies.

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