🎖️ Army Body Fat Calculator
Estimate body fat percentage using the U.S. Army’s circumference-based tape test formula for men and women.
The official tape test formula
This calculator uses the U.S. Army’s circumference-based body fat estimation method. For men: %Body Fat = 86.010 x log10(Waist – Neck) – 70.041 x log10(Height) + 36.76. For women: %Body Fat = 163.205 x log10(Waist + Hip – Neck) – 97.684 x log10(Height) – 78.387, with all measurements in inches.
How measurements are taken
Neck is measured just below the larynx, waist/abdomen at the navel for men (narrowest point for women), and hip at the widest point for women, using a flexible tape measured snugly but without compressing the skin.
This calculator is for general fitness education and reference only. Official military body composition assessments follow specific measurement protocols and standards that can vary by service and regulation, and this tool does not replace an official assessment.