Body Fat Calculator
Calculate your body fat percentage using the accurate US Navy circumference method
What is a Body Fat Calculator?
A Body Fat Calculator using the US Navy method is a scientifically validated tool that estimates your body fat percentage through simple circumference measurements. Developed by the United States Navy for military fitness assessments, this method uses waist, neck, and hip measurements (for women) combined with height to calculate body composition without expensive equipment or invasive procedures.
Our advanced body fat calculator implements the official US Navy formula, which has been extensively validated against DEXA scans and hydrostatic weighing methods. The Navy method shows strong correlation (r=0.85-0.90) with gold-standard body composition techniques while being practical for regular monitoring. It accounts for gender differences in fat distribution patterns and provides accurate results across diverse populations.
Essential for fitness enthusiasts tracking body composition changes, athletes monitoring performance metrics, health professionals assessing patient wellness, individuals planning weight loss or muscle building programs, and anyone seeking to understand their body composition beyond simple weight measurements. The calculator provides health category classifications, ideal ranges, and personalized recommendations based on your results.
Measurements
Circumference data
Navy Formula
Scientific calculation
Body Fat %
Composition result