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Body Fat Calculator
Estimate body fat percentage
body fatbody fat percentagelean mass
📖 How to Use
- Select your gender
- Enter height, neck circumference, and waist circumference
- Women also need hip circumference
- Click Calculate Body Fat
📐 Formula
US Navy method: Male = 86.01×log₁₀(waist−neck) − 70.041×log₁₀(height) + 36.76 Female = 163.205×log₁₀(waist+hip−neck) − 97.684×log₁₀(height) − 78.387
❓ FAQ
What's a normal body fat percentage?▾
Men: 10–20%, Women: 18–28% is considered healthy.
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About Body Fat Calculator
This tool is completely free, no registration required. Works directly in your browser. Supports both PC and mobile devices.
Body Fat Calculator is a free online tool that works on both PC and mobile. No registration or download required — just open in your browser. Results are accurate and reliable for everyday use and professional reference.