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Body Fat Calculator
Estimate body fat percentage using the US Navy circumference method
US Navy Method: Uses height, neck, and waist circumference (plus hip circumference for women) measured in centimeters. Enter your measurements below.
Body Measurements Input (cm)
Calculation Results
⚠️ Not medical advice. For educational and fitness tracking purposes only. Circumference-based body fat estimations carry a margin of error compared to clinical DEXA scans or hydrostatic weighing. Always consult a health professional for precise body composition analysis.