Army BMI Calculator
Use this Army BMI calculator to calculate Body Mass Index from height and weight. BMI is a general adult screening measure only. As of September 2026, Army body-composition compliance uses waist-to-height ratio (WHtR), not BMI, scale weight, or the former circumference body-fat formula.
If you came here for an Army height and weight calculator, this page answers the BMI question. For the current Army body-composition check, use the waist-to-height ratio calculator; for an older weight-limit lookup, see the legacy height-and-weight chart.
What This Army BMI Calculator Measures
Body Mass Index compares weight with height. In metric units, BMI equals kilograms divided by meters squared. In U.S. units, the equivalent formula is 703 × pounds ÷ inches². The result has no age or sex adjustment for adults age 20 and older.
The CDC adult BMI categories label values below 18.5 as underweight, 18.5 to below 25 as healthy weight, 25 to below 30 as overweight, and 30 or higher as obesity. The CDC also describes BMI as a screening measure that should be considered with other health factors—not as a diagnosis.
BMI Is Not the Current Army Body-Composition Test
The Army changed its body-composition process in July 2026. Under Army Directive 2026-13, the official assessment is waist-to-height ratio: waist circumference divided by standing height, with a recorded result required to be below 0.550. The Army’s own 2026 WHtR implementation update identifies that ratio as the sole body-composition assessment and explains its rollout in ATIS.
Therefore, this page does not show an Army pass/fail result, a maximum Army weight, a tape-test body-fat percentage, or an ABCP determination. Those outputs would apply the wrong policy as of September 2026.
A military BMI calculator compares height with scale weight for general information. It does not calculate an APFT event score, even when a search phrases it as an “Army APFT BMI calculator.” For a current Army body-composition estimate, use the separate waist-to-height ratio calculator, which requires a waist measurement instead of weight.
If your search for an Army height-and-weight calculator is about the former AR 600-9 maximum-weight screening table, use the dated historical chart and check the test date. This BMI tool cannot reproduce those old age- and sex-specific weight limits, and the 2026 WHtR assessment cannot be determined from height and scale weight alone.
Why Height and Weight Alone Are Limited
Two people with the same height and weight receive the same BMI even if their proportions of lean mass and fat mass are different. BMI also does not measure waist circumference, which is the measurement needed for the Army’s current WHtR assessment.
Use the BMI result as general context. Do not use it to predict an AFT score, determine Army body-composition compliance, or make a medical decision.
BMI Example and Interpretation
A person who is 70 inches tall and weighs 175 pounds has a BMI of about 25.1:
- 703 × 175 = 123,025.
- 70 × 70 = 4,900.
- 123,025 ÷ 4,900 = 25.107…, displayed as 25.1.
That falls in the CDC’s adult “overweight” screening category, but it does not tell you the person’s waist measurement, body-fat percentage, AFT performance or Army compliance status. The correct Army self-check requires waist and height.