Body Fat Calculator
Estimate body fat % with US Navy tape method. Enter neck, waist, hips and height for lean mass and clas. 100% private and offline.
Body Fat Percentage (US Navy)
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Men: 86.01×log10(waist−neck) − 70.041×log10(height) + 36.76More Health & Fitness
About the author
Written and maintained by the Tool4SaaS team. Every tool runs locally in your browser and is tested in-house for accuracy. Last updated: .
Frequently asked questions
Neck, waist, height and hips for women; uses US Navy formula with log10.
No, for informational purposes only. Consult a healthcare professional for personal guidance.
Yes, it is free, works offline in your browser, and your data never leaves your device.
How to use Body Fat Calculator
- Enter stats: Enter sex and measurements.
- View: See body fat % and category.
- Plan: Use for tracking only.