Army Body Fat Calculator — Calculadora Online Grátis
US Army body fat using circumference measurements with pass/fail against age-based regulation limits
The US Army uses a circumference-based body fat estimation method to assess whether soldiers meet weight and fitness standards as defined in AR 600-9. This calculator applies the official Army formula to compute your body fat percentage and compare it against the age-specific and gender-specific regulatory limits — instantly showing you pass or fail status.
Frequently Asked Questions
Sobre Esta Calculadora
The US Army body fat assessment is mandated under Army Regulation 600-9 (Army Body Composition Program). Soldiers who exceed height-for-weight screening thresholds are measured using the circumference method, and those who exceed the age- and gender-based body fat limits are entered into a body composition improvement program.
The Army formula is based on the same foundational US Navy research as the standard Navy body fat calculation, with minor coefficient adjustments. It uses neck and waist circumference for men (and adds hip circumference for women) along with height. The logarithmic formula accounts for the non-linear relationship between circumference and actual fat distribution.
Army limits are stricter than general health population norms. For males, limits range from 20% (under 30) to 26% (age 40+). For females, limits range from 30% (under 30) to 36% (40+). These limits are set for readiness and operational performance standards, not minimum health thresholds.
The US Army uses a circumference-based body fat estimation method to assess whether soldiers meet weight and fitness standards as defined in AR 600-9. This calculator applies the official Army formula to compute your body fat percentage and compare it against the age-specific and gender-specific regulatory limits — instantly showing you pass or fail status.
Exemplo Resolvido
Army body fat assessment for a 28-year-old male soldier
Entradas:
- Age: 28
- Sex: Male
- Height: 175 cm (69 in)
- Neck circumference: 37 cm (14.57 in)
- Waist circumference: 85 cm (33.46 in)
Passo a Passo:
- Apply Army formula for males:
- %BF = 86.010 × log₁₀(waist − neck) − 70.041 × log₁₀(height) + 36.76
- Waist − neck = 33.46 − 14.57 = 18.89 in; log₁₀(18.89) = 1.2762
- log₁₀(69) = 1.8388
- %BF = 86.010 × 1.2762 − 70.041 × 1.8388 + 36.76
- = 109.78 − 128.78 + 36.76 = 17.76%