Army Body Fat Calculator
US Army/APFT standards for body fat % using circumference measurements
US Army Body Fat Standards
Military tape method measures body fat via neck, waist (men), or neck/hips (women) circumferences. More accurate than BMI for athletic builds. Meets DoD/APFT standards with max limits: Men 18-22% (age 17-27), Women 26-34% (age 17-27).
Tape Measurement Method
- Measure neck circumference (below Adam’s apple).
- Men: waist at navel. Women: waist + hips (widest point).
- Enter measurements in inches/cm. Get % body fat instantly.
FAQs
- Tape vs calipers vs DEXA accuracy?
- Army tape ±3-4% vs DEXA. Calipers ±4-5%. BMI useless for muscular builds (±10%).
- Why neck/waist ratio matters?
- Android fat (waist) metabolically worse than gynoid (hips). Neck correlates with visceral fat.
- Time of day effect?
- Morning fasted: most accurate. Post-meal: +1-2%. Evening: +2-3% due to food/water.
- Army vs Navy formula difference?
- Navy adds height. Army circumference-only. Army 1-2% higher readings for same person.
- Can muscular people pass easier?
- Yes – BMI fails athletes (22% vs 12% BF). Tape method rewards muscle mass.

