Introduction
The Army BMI Calculator helps you find out if you meet the U.S. Army body fat and weight standards set by AR 600-9. It checks your Body Mass Index (BMI), runs the Army height and weight screening, and estimates your body fat percentage using the official DoD tape test method, with the screening and tape test now kept as a legacy view beside the current waist-to-height standard.
This tool gives you clear results, so you know where you stand before you enlist or face a weigh-in. Enter your age, sex, height, weight, and body measurements. Under the current standard the calculator shows whether your waist-to-height ratio is below 0.55; the legacy view shows the age-group tape-test result. It also breaks down each step so you can see exactly how your numbers were found.
2026 update: Army Directive 2026-13 made a waist-to-height ratio of less than 0.55 the Army's only body composition standard and discontinued the height and weight screening tables and the tape test.2 It took effect on July 7, 2026.3 The checks below follow the earlier regulation, so treat them as a reference for the older standard rather than a pass or fail under current policy.
How to Use Our Army BMI Calculator
Enter your body measurements below to find your BMI, Army body fat percentage, and whether you pass the Army height and weight standards under AR 600-9. Here is what each field means.
Unit System: Pick Imperial if you measure in pounds and inches. Pick Metric if you use kilograms and centimeters.
Biological Sex: Choose Male or Female. The Army uses different body fat limits for each sex. If you are female, a hip measurement field will appear.
Age: Enter your age in years, from 17 to 65. The Army sets different body fat limits for each age group.
Height: Enter your height in feet and inches, or in centimeters if you chose Metric. You must be between 4 feet 10 inches and 6 feet 8 inches.
Weight: Enter your current body weight in pounds or kilograms. This is used to calculate your BMI and, in the legacy view, to check it against the Army screening weight table.
Neck Circumference: Measure around your neck just below the Adam's apple. Keep the tape level and perpendicular to your neck. Enter the value in inches or centimeters.
Waist / Abdomen Circumference: Men should measure at the navel. Women should measure at the narrowest part of the waist. Keep the tape snug but not tight.
Hip Circumference (Women Only): This field only shows up if you select Female. Measure around the widest part of your hips and buttocks. Keep the tape level.
Press the Calculate button to see your results. You will get your waist-to-height ratio against the 0.55 standard and your BMI; the legacy view adds your Army screening weight status, estimated body fat percentage, and the age-group body fat result. The tool also shows step-by-step math, visual charts, and a full reference table of Army standards.
What Is the Army BMI Calculator?
The Army BMI Calculator helps you find out if you meet the U.S. Army's body weight and body fat rules. The Army uses a set of standards called AR 600-9 to check that every soldier stays fit and healthy. The legacy view does two checks: a height and weight screening and a body fat estimate using the tape test method.
How the Army Checks Your Body
First, the Army looks at your height and weight. Each height has a maximum allowed weight based on your age group and sex. If your weight is at or below that number, you pass the screening and no further test is needed. If your weight is over the limit, you move to the second step: the tape test.
The tape test measures the size of your neck, waist, and (for women) hips. These numbers are plugged into a DoD formula that estimates your body fat percentage. The Army then compares your result to a maximum body fat limit for your age group. Men are allowed between 20% and 26% body fat depending on age.1 Women are allowed between 30% and 36%.1 For a deeper look at your body fat results using the same DoD circumference method, see our dedicated Army Body Fat Calculator.
What Is BMI?
Body Mass Index (BMI) is a simple number that compares your weight to your height. A BMI between 18.5 and 24.9 is considered normal.4 A BMI of 25 or higher is considered overweight, and 30 or higher is considered obese.4 BMI is a quick screening tool, but it does not tell you how much of your weight is fat versus muscle. That is why the Army also uses the tape test. For a general BMI assessment outside of military standards, you can also use our standard BMI Calculator.
Age Groups and Standards
The Army splits soldiers into four age groups: 17–20, 21–27, 28–39, and 40+.1 Younger soldiers have stricter body fat limits. As you get older, the allowed maximum goes up slightly. The screening weight tables also change with each age group. The legacy view picks the right age-group standard for you based on the age you enter; the current waist-to-height standard is the same for every age.
Who Should Use This Calculator?
This tool is useful for anyone who wants to join the Army, is currently serving, or is preparing for a fitness assessment. It gives you a clear picture of where you stand before an official weigh-in. Keep in mind that initial enlistment standards can be stricter than the numbers used for active-duty retention. Always confirm the exact requirements with a recruiter or your unit.
Important Things to Know
The tape test formula used here is the official Department of Defense circumference-based method.1 Measurements must be taken correctly to get an accurate result. The neck is measured just below the Adam's apple. The waist is measured at the navel for men and at the narrowest point for women. Hips are measured at the widest point around the buttocks. Even small errors in measuring can change your body fat result by several percentage points.
This calculator gives you an estimate. It is not a substitute for an official Army body composition assessment done by trained personnel.