US Army Body Fat Calculator
Calculate your body fat percentage using the US Army's method.
Enter Your Measurements
Table of Contents
US Army Method
The US Army body fat calculator uses a specific formula based on height, neck, waist, and hip (for females) measurements to estimate body fat percentage.
For Women: 163.205 × log10(waist + hip - neck) - 97.684 × log10(height) - 78.387
How to Measure
To get accurate measurements, follow these steps:
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1Measure your height in centimeters
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2Measure your neck at the narrowest point
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3Measure your waist at the navel level
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4For women, measure your hips at the widest point
Body Fat Categories
Body fat categories for men and women:
Essential Fat
Men: 2-5% | Women: 10-13%
Minimum amount of fat needed for basic bodily functions.
Athletic
Men: 6-13% | Women: 14-20%
Typical for athletes and very fit individuals.
Fitness
Men: 14-17% | Women: 21-24%
Healthy range for most active individuals.
Average
Men: 18-24% | Women: 25-31%
Average range for most adults.
Limitations
While the US Army method is widely used, it has some limitations:
- May not be accurate for very muscular individuals
- Accuracy depends on proper measurement technique
- Does not account for body composition variations
- Should be used as part of a comprehensive health assessment