Army Body Fat Calculator

How to Use the Calculator

• Prepare Measurements: Gather the following details before starting:
  • Age and Sex: Select your age group and gender as they influence body fat standards.
  • Height: Measure your height without shoes, standing straight against a wall.
  • Neck Circumference: Measure just below the larynx (Adam’s apple).
  • Waist Circumference::
    • For men: Measure at the navel level.
    • For women: Measure at the narrowest part of the abdomen.
  • Hip Circumference (Females Only): Measure at the widest point of the hips or buttocks.
• Enter Data: Input the above measurements into the calculator to compute your body fat percentage.
• Results: The calculator applies formulas specified in the Army Body Composition Program to provide your body fat percentage.

What’s a Healthy Range or Unhealthy Range?

According to U.S. Army standards, the following body fat percentage ranges apply:

Age Group	Men (%BF)	Women (%BF)
17-20	20% or lower	30% or lower
21-27	22% or lower	32% or lower
28-39	24% or lower	34% or lower
40+	26% or lower	36% or lower

• Healthy Body Fat %: Body fat percentages within the above ranges are considered healthy for military personnel.
• Unhealthy Body Fat %: TIf your body fat exceeds the U.S. Army's standards for your age and sex, it may indicate the need for dietary or fitness adjustments.

Why Use This Calculator?

• Military Fitness Standards: Ensures compliance with US Army Regulation 600-9 for body composition.
• Health Insights: Helps differentiate between fat mass and lean mass, making it a valuable tool for overall health monitoring.
• Accuracy: Uses established formulas:
  • For Men: %BF = (86.010 * log10( waist – neck ) ) – (70.041 * log10(height)) + 36.76
  • For Women: %BF = (163.205 * log10( waist + hip – neck ) ) – (97.684 * log10(height)) – 78.387
• Goal Setting: Enables tracking progress in reducing body fat to meet military standards.