Army Body Fat Calculator
Body fat % = 495 ÷ Body density − 450 (Army formula varies by gender)Body density≈1.057; 495/1.057−450≈18.3%
Free online tool
Army Body Fat Calculator
Enter your height, waist, neck and hip measurements.
Instant calculation
Army Body Fat Calculator
Enter your height, waist, neck and hip measurements.
Your result
Calculation
Your numbers stay in this browser. Nothing is uploaded or saved.
Three clear steps
How to use this calculator
- 01
Enter height
Type your height in centimeters.
- 02
Enter measurements
Type waist and neck (and hip if female) in centimeters.
- 03
Select gender
Choose male (0) or female (1).
The formula
How this calculation works
Uses the Army tape test method. Males use neck and waist; females add hip measurement.
Check the method
Worked examples
Each example follows the same formula used by the calculator.
Male, 170 cm, neck 38 cm, waist 85 cm — body fat?
Body density≈1.057; 495/1.057−450≈18.3%≈ 18.3% body fatCommon questions
Questions about this calculation
What is the Army Body Fat Calculator?
The Army Body Fat Calculator helps you estimate body fat percentage using the U.S. Army circumference method. Enter your values and select Calculate to get an instant result.
How is the result calculated?
Uses the Army tape test method. Males use neck and waist; females add hip measurement.
Can you show an example?
Example: Male, 170 cm, neck 38 cm, waist 85 cm — body fat? — ≈ 18.3% body fat.
Is my data saved when I use the Army Body Fat Calculator?
No. All calculations run locally in your browser. Your inputs and results are never uploaded, stored or shared with anyone.
Is the Army Body Fat Calculator free to use?
Yes. The Army Body Fat Calculator is completely free. No account, sign-up or payment is required. It works on mobile, tablet and desktop.
Continue calculating