Army Body Fat Calculator

Calculate body fat percentage using US Army measurement standards. Check if you meet Army body fat requirements.

Your Measurements

Range: 17-65 years

Range: 48-84 inches

Measure around the neck, just below the larynx

Measure at the navel level

Enter your measurements and click Calculate to see your body fat percentage and Army standards assessment.

Complete User Guide

What is the Army Body Fat Calculator?

The US Army Body Fat Calculator uses a specific measurement-based formula to estimate body fat percentage. This method is used by the US Army to determine if service members meet body composition standards required for military service.

Unlike BMI, this calculator uses actual body measurements (neck, waist, and hip circumference) along with height to provide a more accurate assessment of body fat percentage.

US Army Body Fat Standards

Males

Ages 17-20: Max 20% | Ages 21-27: Max 22% | Ages 28-39: Max 24% | Ages 40+: Max 26%

Females

Ages 17-20: Max 30% | Ages 21-27: Max 32% | Ages 28-39: Max 34% | Ages 40+: Max 36%

How to Use This Calculator

  1. Select your gender (Male or Female)
  2. Enter your age (17-65 years)
  3. Enter your height in inches
  4. Measure and enter your neck circumference (just below the larynx)
  5. Measure and enter your waist circumference (at the navel level)
  6. For females, measure and enter your hip circumference (widest point)
  7. Click 'Calculate Body Fat' to see your results

How to Take Measurements

Neck Measurement

Measure around the neck, just below the larynx (Adam's apple). Keep the tape measure horizontal and snug but not tight.

Waist Measurement

Measure at the navel level (belly button), not at the narrowest point. Stand straight, breathe normally, and measure at the end of a normal breath.

Hip Measurement (Females Only)

Measure around the hips at the widest point. This is typically around the buttocks area. Keep the tape measure horizontal.

Understanding Your Results

Body Fat Percentage

Your calculated body fat percentage based on the US Army formula. This is an estimate and may vary from other measurement methods.

Maximum Allowed

The maximum body fat percentage allowed for your age and gender according to US Army standards. If your percentage is below this, you pass.

Pass/Fail Status

Indicates whether you meet the Army body fat standards. 'Pass' means you're within the allowed range, 'Fail' means you exceed it.

Difference

The difference between your body fat percentage and the maximum allowed. Positive values mean you're over the limit, negative values mean you're under.

Understanding the Charts

Body Fat Gauge Chart

A circular gauge showing your body fat percentage visually. The color corresponds to your status (green for pass, yellow/orange/red for fail).

Army Standards Chart

Shows different body fat ranges (Excellent, Good, Acceptable, Over Limit). Your current percentage is highlighted in the appropriate range.

Comparison Chart

A direct comparison between your body fat percentage and the maximum allowed for your age and gender group.

Body Fat Scale

A visual scale showing body fat ranges with a marker indicating your current position relative to Army standards.

US Army Body Fat Formula

For Males:

Body Fat % = 86.010 × log10(waist - neck) - 70.041 × log10(height) + 36.76

For Females:

Body Fat % = 163.205 × log10(waist + hip - neck) - 97.684 × log10(height) - 78.387

All measurements are in inches. The formula uses logarithmic calculations to estimate body fat percentage based on body circumference measurements.

Important Notes

  • This calculator uses the US Army body fat estimation formula. Actual body fat percentage may vary when measured with more precise methods like DEXA scan or hydrostatic weighing.
  • Accurate measurements are crucial. Measure at the same time of day, preferably in the morning before eating.
  • This calculator is for educational and informational purposes only. Official Army body fat assessments are conducted by trained personnel using standardized procedures.
  • Body fat standards may change. Always refer to the latest official US Army regulations for current requirements.

Tips for Meeting Army Standards

If you're over the body fat limit, consider:

  • Regular cardiovascular exercise (running, cycling, swimming)
  • Strength training to build lean muscle mass
  • A balanced diet with appropriate calorie intake
  • Consistent sleep schedule and stress management
  • Consulting with a healthcare provider or fitness professional

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