This army body fat calculator checks your waist-to-height ratio against the Army standard in force since July 2026, under 0.55, and also estimates body fat with the older DoD tape formula. A 70-inch Soldier with a 34-inch waist has a ratio of 0.486 and meets it.
On this page
How to use the army body fat calculator
- Enter height, neck and waist in inches.
- For women, also enter the hip measurement.
- Choose sex.
- Read the waist-to-height ratio, whether it meets the 0.55 standard, and the estimated body fat.
Army body fat calculator and the 2026 standard
On July 7, 2026 the Army replaced its height and weight tables, the circumference tape test and supplemental body fat assessments with a single waist-to-height ratio (WHtR) test, under Army Directive 2026-13. The waist is measured at the navel and divided by height in inches. A ratio under 0.55 meets the standard. Soldiers are assessed twice a calendar year; a reading of 0.55 or more gets a confirmation test by another team on the same day, and a Soldier who fails is flagged and enrolled in the Army Body Composition Program. The Army said it would run a 180-day assessment of the new test and that no separations for failing WHtR would occur during it.
Check your waist-to-height ratio
- WHtR = waist at the navel (inches) ÷ height (inches)
- Under 0.55: meets the Army standard
- Largest waist that meets it = height × 0.55, just under that figure
| Height | Waist | WHtR | 2026 standard | Old DoD estimate |
|---|---|---|---|---|
| 70 in | 34 in | 0.486 | Meets | 17.5% |
| 70 in | 38 in | 0.543 | Meets | 24.6% |
| 70 in | 39 in | 0.557 | Does not meet | 26.2% |
| 66 in | 36 in | 0.545 | Meets | 23.0% |
| 72 in | 40 in | 0.556 | Does not meet | 26.9% |
| 64 in | 35 in | 0.547 | Meets | 22.2% |
The last column is the older DoD circumference body fat estimate (male, 15-inch neck) that this army body fat calculator also shows. It is no longer used for Army compliance.
What this army body fat calculator shows
The tool uses the older DoD multi-site tape formula: for men, 86.010 × log10(waist − neck) − 70.041 × log10(height) + 36.76; for women, 163.205 × log10(waist + hip − neck) − 97.684 × log10(height) − 78.387, all in inches. It gives an estimate of body fat percentage, which can still be useful for tracking. Alongside it, the calculator shows your waist-to-height ratio, whether it is under 0.55, and the largest waist that meets the standard at your height.
Worked example
A Soldier who is 70 inches tall with a 34-inch waist has a WHtR of 34 ÷ 70 = 0.486, which meets the standard. For that height, a waist of 38.5 inches gives exactly 0.55, so the waist must be below 38.5 inches. With a 15-inch neck, the older DoD formula would estimate about 17.5% body fat.
Previous standards
Before the 2026 change, Soldiers who exceeded the height and weight screening table were taped. From 2023 the Army used a one-site abdominal tape formula, and the body fat limits by age group were 20%, 22%, 24% and 26% for men and 30%, 32%, 34% and 36% for women. Those limits no longer decide compliance.
Measuring the waist
- Stand relaxed and measure around the abdomen at the level of the navel.
- Keep the tape level and snug without pressing into the skin.
- Measure height without shoes, in inches.
The army body fat calculator cannot replace an official assessment. For official results, only the measurement taken by your unit counts. This page is general information, not medical or command guidance.
Tracking progress toward the standard
Because the waist-to-height ratio depends only on your waist and your height, the waist is the number that changes. To move from 0.57 to under 0.55 at 70 inches tall, the waist must shrink from about 39.9 inches to below 38.5 inches, roughly an inch and a half. Measure at the same time of day, at the navel, a couple of times a month, and record the result alongside the army body fat calculator estimate if you find the percentage useful for training. Steady changes in diet, sleep and training usually work better than crash weight loss before a test.
Related converters and calculators
Related calculators:
- Body fat calculator: body fat
- BMI calculator: BMI
- Ideal weight calculator: weight
- Calorie calculator: calories
Sources
U.S. Army: Army adopts waist-to-height ratio (July 7, 2026); Army Directive 2026-13: Army Body Composition Program.
Formula and method
WHtR = waist (at navel) / height; under 0.55 meets the Army standard since July 7, 2026. Older DoD body fat estimate: Male: 86.010 x log10(waist - neck) - 70.041 x log10(height) + 36.76. Female: 163.205 x log10(waist + hip - neck) - 97.684 x log10(height) - 78.387. All inputs in inches.
DoD-style circumference method using base-10 logs. Educational estimate only; not an official Army scorecard.
Questions about this calculator
What is the Army body fat standard in 2026?
Since July 7, 2026, a waist-to-height ratio under 0.55.
How is waist-to-height ratio measured?
Waist at the navel divided by height, both in inches.
Does the Army still use the tape test?
No. Directive 2026-13 replaced it with the WHtR test.
What happens at 0.55 or above?
A same-day confirmation test; if it fails, enrollment in the ABCP.
What formula does this calculator use?
The older DoD circumference body fat formula.
Check the assumptions and units before relying on a result. Financial, tax and health estimates do not replace advice for your individual circumstances.
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