Navy Body Fat Calculator
Estimate body-fat percentage from tape measurements using the US Navy formula. Screening estimate only — not a diagnosis.
Frequently asked questions
What formula is used?
The US Navy / DoD circumference method (Hodgdon–Beckett), using inches and log10.
Is this medical advice or a diagnosis?
No. It is a tape estimate, not a DEXA scan or diagnosis — not medical advice.
Is anything uploaded?
No. Measurements stay in your browser.