Estimate body fat. Understand the method behind the result.
Legacy method selected. Not the current Army compliance assessment.
Estimated body fat
17.0%Within historical reference
Legacy multi-site estimate
Illustrative landmarks; measure over bare skin or as prescribed by the protocol. Do not tighten a tape around the neck.
Historical reference comparison
Download a text summary. PDF is available in member tools.
Step-by-step calculation
How to measure accurately
- Stand relaxed and breathe normally.
- Keep the tape horizontal without compressing skin.
- Repeat measurements using the selected protocol.
For male legacy estimates use abdomen at the navel, neck and height. Female legacy estimates use the natural waist, widest hip circumference, neck and height. Do not interchange waist sites.
Frequently asked questions
Is this the current Army body composition test?
The Current 2026 option calculates waist-to-height ratio. The Army announcement of 7 July 2026 describes a benchmark below 0.55 and replacement of earlier tape-based body-fat assessments. The Legacy multi-site and 2023 one-site options are historical estimates, not current compliance assessments.
Why are different assessment methods shown?
They explain why older calculators can give different results. The legacy method uses height and circumference differences; the archived 2023 method uses abdomen circumference and body weight. Neither result should be presented as current Army clearance.
Does Gender change the legacy formula?
Yes. Male and Female select the categories used by the historical equations and reference tables. Female multi-site estimates also require hip circumference and use the natural waist rather than the navel. The current waist-to-height benchmark does not change with this selection.
Can I use centimetres and inches?
Yes. Switching units converts the same underlying measurements. Historical logarithmic equations use inches internally; the archived one-site equation uses inches and pounds. Waist-to-height ratio uses the same length units for both measurements.
Is the displayed estimate an official pass or fail?
No. This tool does not reproduce an official examination, medical judgement, all measurement/rounding procedures, exemptions or administrative decisions. Historical comparisons use the continuous estimate before display rounding. Verify applicable policy with an authorized assessor.
What does the US Army Body Fat calculate?
Historical context — this preserved entry refers to earlier tape-based assessment: Estimate body fat. Understand the method behind the result. Current Army assessment uses the July 2026 waist-to-height reference; use the current-method option above.
Which values should I enter?
Historical context — this preserved entry refers to earlier tape-based assessment: Enter the values requested by the calculator using the labels and units shown on the page. Current Army assessment uses the July 2026 waist-to-height reference; use the current-method option above.
What formula does this calculator use?
Historical context — this preserved entry refers to earlier tape-based assessment: The calculator uses the following relationship: Current reference: waist-to-height ratio = waist / height; July 2026 benchmark <0.55. Historical multi-site: logarithmic circumference equations in inches. Archived 2023 one-site: weight in pounds and abdomen in inches. Historical body-fat limits depend on age and Gender.. Current Army assessment uses the July 2026 waist-to-height reference; use the current-method option above.
Why might my result differ from another source?
Historical context — this preserved entry refers to earlier tape-based assessment: Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis. Current Army assessment uses the July 2026 waist-to-height reference; use the current-method option above.
Does the result update automatically?
Historical context — this preserved entry refers to earlier tape-based assessment: Yes. Changing an input updates the result using the same calculation engine shown on this page. Current Army assessment uses the July 2026 waist-to-height reference; use the current-method option above.
Sources & references
References inform the content; no institutional endorsement.
U.S. Army · July 2026Current waist-to-height referenceOfficial policy announcement and measurement overview.
HPRC / CHAMPHistorical Army age references2019 AR 600-9 comparison tables. Historical, not current policy.Fort Jackson · AD 2023-11Archived one-site assessmentInspector General guidance with worked examples.
