What is Army Body Fat Calculator?
The Army Body Fat Calculator calculates official compliance with US Army Regulation 600-9 (The Army Body Composition Program) to verify whether soldiers meet fitness readiness standards.
How to Use This Calculator
- Select sex and age group.
- Enter height and official tape measurements.
- Determine if body fat falls beneath the age-graded maximum allowable limit.
The Mathematical Formula & Variables
AR 600-9 Male: 86.010 * log10(Abdomen - Neck) - 70.041 * log10(Height) + 36.76
Variables Definition
| Symbol / Variable | Name | Description |
|---|---|---|
Age 17-20 |
Max 20% Male, 30% Female | Entry-level age bracket cutoff. |
Age 21-27 |
Max 22% Male, 32% Female | Mid-tier bracket cutoff. |
Age 28-39 |
Max 24% Male, 34% Female | Senior soldier cutoff. |
Step-by-Step Worked Example
Scenario: Male soldier, age 28, height 70 in, neck 16 in, abdomen 34 in.
- Abdomen minus neck = 34 - 16 = 18 inches.
- Calculated body fat = 16.8%.
- Max allowable for age 28 = 24.0%. Result: PASS.
Result: 16.8% Body Fat (PASS)
Frequently Asked Questions
How many times are tape measurements repeated in the Army?
Army regulation requires three consecutive measurements taken sequentially to the nearest 1/2 inch, with the average recorded as the official score.