Body Fat Calculator
Estimates body fat percentage using the U.S. Navy circumference method.
Lilu Baba's Body Fat Calculator uses the widely-used U.S. Navy circumference method, needing just a tape measure. Informational only, not medical advice.
How to use this calculator
- Enter your gender, height and neck and waist measurements.
- Women also enter hip measurement.
- Estimated body fat percentage updates instantly using the U.S. Navy method.
Estimated Body Fat %
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FAQ
Body Fat Calculator — frequently asked questions
It's a reasonable estimate for most people but less precise than methods like DEXA scans or hydrostatic weighing.
Waist: at the navel, standing relaxed. Neck: just below the larynx. Measure consistently for comparable results over time.