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Army body fat calculator

Would you pass the Army tape test?

Enter your tape measurements and see your estimated body fat percentage instantly using the official Department of Defense circumference method, along with a PASS or FAIL verdict against the AR 600-9 standard for your age and sex.

Your measurements

The formula differs by sex.

yrs

Your current age in years.

in

Your total height in inches.

in

Neck circumference measured below the Adam's apple.

in

Waist circumference at the navel for men.

The DoD tape test estimates body fat from neck, waist and (for women) hip circumferences plus height. In an official assessment, three measurements are taken at each site and averaged, with the tape level and snug but not compressing the skin. Results update as you type.

Your body fat
0.0%
Enter your measurements

What your result means

    Army limits by age, and where you sit

    Your limit as you age

    AR 600-9 maximum body fat standards

    Maximum allowable body fat percentage by age group and sex under AR 600-9. The highlighted row is your current age group.

    Age groupMenWomenWhat it means

    The Army tape test, explained

    What is the Army Body Fat Test?

    The Department of Defense (DoD) body fat tape test is the official method used by all US military branches (Army, Navy, Marines, Air Force) to assess body composition. It uses circumference measurements of the neck, waist, and (for women) hips along with height to estimate body fat percentage without specialized equipment.

    Military Body Fat Standards

    Maximum allowable body fat varies by age and sex. For men aged 17-20: 20%, 21-27: 22%, 28-39: 24%, 40+: 26%. For women aged 17-20: 30%, 21-27: 32%, 28-39: 34%, 40+: 36%. Service members exceeding these limits may be enrolled in body composition programs or face administrative action.

    How the Tape Test is Performed

    The tape test requires precise measurement technique. The neck is measured below the Adam's apple. The waist is measured at the navel for men and at the narrowest point for women. Hips (women only) are measured at the widest point. Three measurements are taken at each site and averaged. The tape must be level and snug but not compressing the skin.

    Accuracy of the Tape Test

    The DoD tape test has a standard error of about 3-4% compared to hydrostatic weighing. It tends to underestimate body fat in lean individuals and overestimate it in obese individuals. Despite limitations, it remains the standard because it requires no equipment and can be administered anywhere by trained personnel.

    Common questions

    Is this the same formula used by all military branches?

    Yes, all DoD branches use the same circumference-based formula as specified in DoD Instruction 1308.3. The maximum body fat standards may differ slightly between branches, but the measurement and calculation method is uniform.

    Why are hips only measured for females?

    The formula accounts for biological differences in fat distribution. Women tend to store more fat in the hips and thighs, so hip measurement is needed for accuracy. The male formula achieves adequate accuracy with just neck and waist measurements.

    How can I improve my tape test results?

    Focus on reducing waist circumference through a combination of caloric deficit, cardiovascular exercise, and core strengthening. Building neck muscle through resistance training can also improve your ratio. Avoid crash diets, consistent, moderate approaches yield better long-term results.

    What if I fail the tape test?

    Service members who fail the tape test are typically enrolled in a body composition program with fitness counseling and follow-up assessments. Multiple failures can lead to administrative separation. Civilian users can use this as a health screening tool and consult a healthcare provider if results indicate concern.

    This calculator gives an unofficial tape-measure estimate for planning and self-checks only. An official body composition assessment must be performed by authorized, trained personnel following the exact AR 600-9 procedure, with three averaged measurements per site. The tape method can be off by 3 to 4 percentage points versus laboratory methods, and this page is not medical or administrative advice: talk to your unit's fitness staff or a healthcare provider about what your result means for you.