# Army Body Fat Calculator

> Check the current U.S. Army waist-to-height standard and optionally calculate the legacy 2023 one-site body-fat estimate.

Page: https://askcalculators.com/calculator/army-body-fat-calculator/
Definition: https://askcalculators.com/calculator/army-body-fat-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/army-body-fat-calculator/schema.json
Version: 2.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/army-body-fat-calculator/?standard=current2026&unitSystem=metric&sex=male&age=30&weightKg=70&heightCm=175&waistCm=90

## Inputs
- standard: Army standard; type=select; required; default=current2026; values=current2026|legacy2023
- unitSystem: Units; type=select; required; default=metric; values=metric|imperial
- sex: Sex used by equation; type=select; required; default=male; values=male|female
- age: Age; type=number; required; default=30; min=13; max=120
- weightKg: Weight; type=number; required; default=70; min=1; max=500; showWhen=unitSystem:metric
- heightCm: Height; type=number; required; default=175; min=50; max=300; showWhen=unitSystem:metric
- weightLb: Weight; type=number; required; default=154; min=2; max=1100; showWhen=unitSystem:imperial
- feet: Height feet; type=number; required; default=5; min=1; max=9; showWhen=unitSystem:imperial
- inches: Height inches; type=number; required; default=9; min=0; max=11.9; showWhen=unitSystem:imperial
- waistCm: Waist at navel; type=number; required; default=90; min=20; max=300; showWhen=unitSystem:metric
- waistIn: Waist at navel; type=number; required; default=35.4; min=8; max=120; showWhen=unitSystem:imperial

## Outputs
- ratio: Waist-to-height ratio; format=number; primary
- status: Current standard result; format=text
- maximumWaist: Maximum waist at 0.55; format=text
- legacyBodyFat: Legacy 2023 body-fat estimate; format=percent
- legacyStatus: Legacy age-band result; format=text

## Formula
Current assessment: WHtR = waist circumference ÷ height, with a ratio below 0.55 meeting the Army screening benchmark; optional legacy estimate uses the 2023 sex-specific one-site equation.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: This educational tool cannot establish official Army compliance. Follow current Army measurement procedures and official records.