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Calculate your body fat percentage using the official US Army AR 600-9 circumference-based method. Check if you meet Army body fat standards for your age and gender with instant results.
Measure at the smallest point below the Adam's apple
Measure at navel level (horizontal around abdomen)
This calculator uses the official US Army circumference-based method (AR 600-9). It's the same formula used for Army body composition assessments and tape tests.
AR 600-9 is the official Army regulation governing the Army Body Composition Program (ABCP). It establishes body fat standards, measurement procedures, screening table weights, and administrative actions for soldiers who exceed standards. This regulation applies to all Army components including Active Duty, Reserve, and National Guard.
The Army tape test uses circumference measurements to estimate body fat percentage. For males, neck and waist measurements are taken. For females, neck, waist, and hip measurements are required. These measurements are entered into the official Army formula to calculate body fat percentage, which is then compared against age and gender-specific standards.
Army body fat standards ensure soldiers maintain the physical fitness and appearance required for military service. Exceeding standards can result in enrollment in ABCP, flags preventing favorable personnel actions, and potential separation from service. Meeting standards is essential for career progression and readiness.
The Army tape test is accurate within 3-4% when performed correctly by trained personnel. Proper measurement technique is crucial - tape must be level, snug but not tight, and measurements taken at correct anatomical points. Taking multiple measurements and averaging improves accuracy.
The Army body fat calculator uses the official US Army circumference-based method (AR 600-9) to estimate body fat percentage. It requires measurements of neck, waist, and hip (for women) circumferences along with height. This calculator provides estimates for informational purposes and should not replace official Army assessments conducted by trained personnel.
The Army tape test typically has a margin of error of 3-4% when measurements are taken correctly by trained personnel. Accuracy depends on proper measurement technique, consistent conditions, and correct tape placement. For official assessments, always consult with qualified military personnel who follow AR 600-9 procedures.
Army body fat standards vary by age and gender. For males: 17-20 years (20%), 21-27 years (22%), 28-39 years (24%), 40+ years (26%). For females: 17-20 years (30%), 21-27 years (32%), 28-39 years (34%), 40+ years (36%). These are maximum allowable percentages per AR 600-9.
For males: Measure neck at smallest point below Adam's apple, waist at navel level (horizontal). For females: Add hip measurement at widest point. Stand relaxed, don't flex or suck in. Keep tape level and snug but not tight. Measure to nearest 0.5 inch. Take 3 measurements and use the average for best accuracy.
Failing the Army body composition assessment can result in enrollment in the Army Body Composition Program (ABCP), flags preventing favorable personnel actions (promotions, schools, awards), monthly weigh-ins, and potential separation from service if standards aren't met within the prescribed timeframe. Commanders may also impose additional administrative actions.
Our Army body fat calculator uses the official US Army AR 600-9 circumference-based method to estimate body fat percentage. Simply enter your gender, age, height, weight, and circumference measurements (neck, waist, and hip for females). The calculator instantly determines your body fat percentage and compares it against Army standards for your age and gender, showing whether you pass or fail.
Army body fat standards are age and gender-specific per AR 600-9. For males: 17-20 years (20%), 21-27 years (22%), 28-39 years (24%), 40+ years (26%). For females: 17-20 years (30%), 21-27 years (32%), 28-39 years (34%), 40+ years (36%). These are maximum allowable percentages. Exceeding these standards results in enrollment in the Army Body Composition Program (ABCP) and can affect career progression.
Accurate measurements are critical for valid results. For males, measure neck at the smallest point below the Adam's apple and waist at navel level (horizontal). For females, add hip measurement at the widest point. Stand relaxed with normal posture - don't flex, suck in, or hold breath. Keep tape level and snug but not tight. Measure to nearest 0.5 inch. Take three measurements and use the average for best accuracy.
Soldiers who exceed body fat standards are enrolled in ABCP. This program requires monthly weigh-ins, development of a weight loss plan, and regular progress monitoring. Soldiers in ABCP receive flags that prevent favorable personnel actions including promotions, schools, awards, and reenlistment. Failure to meet standards within prescribed timeframes can result in separation from service.
To meet Army body fat standards, create a moderate calorie deficit of 300-500 calories per day through diet and exercise. Combine cardiovascular training (running, swimming, cycling) with strength training to preserve lean muscle mass. Eat high protein (1.6-2.2g per kg body weight), prioritize whole foods, get 7-9 hours of sleep, and stay hydrated. Aim for 0.5-1% body fat loss per month for sustainable results. Work with your unit's Master Fitness Trainer for personalized guidance.
While both services use circumference-based methods, the formulas differ. The Army method (AR 600-9) measures waist at navel level, while the Navy method measures at the narrowest point. The Army uses different formulas and has different standards than the Navy. Results can vary by 1-3% between methods. Each service has its own regulations and standards that must be followed for official assessments.
This calculator provides estimates for educational and informational purposes only and should not be considered medical advice. Official Army body composition assessments must be conducted by qualified military personnel following AR 600-9 procedures. Results from this calculator may vary from official measurements due to differences in measurement technique and individual factors.
Always consult with your unit's Master Fitness Trainer, healthcare provider, or qualified medical professional for official assessments, personalized fitness advice, and before making any decisions based on body composition results. This tool does not replace professional military fitness evaluations or medical guidance.
Methodology: This calculator implements the official US Army AR 600-9 circumference-based formula as published in Army Regulation 600-9 (Army Body Composition Program). The formula has been validated for military fitness assessments and is used across all Army components.
Data Sources: Body fat standards and formulas are based on official military regulations including US Army AR 600-9, UK Armed Forces fitness standards, Canadian Armed Forces FORCE program, Australian Defence Force fitness standards, and Indian Armed Forces medical guidelines.
Limitations: Circumference-based methods provide estimates with a typical margin of error of 3-4%. Accuracy depends on proper measurement technique. More precise methods include DEXA scans, hydrostatic weighing, and bioelectrical impedance analysis conducted by qualified professionals.
Updates: This calculator is regularly updated to reflect current military fitness standards and regulations. Last updated: February 2026.