Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Army Body Fat Calculator

Estimate body-fat percentage using the U.S. Army circumference-based method (AR 600-9). Uses neck, waist, height for men, and neck, waist, hips, height for women.

Sex

Height (in)

Neck circumference (in)

Waist circumference (at navel) (in)

Hips circumference (women only) (in)

Fill in the required fields to see your result.

Health

Waist-to-Hip Ratio Calculator

Divides your waist circumference by your hip circumference to gauge how body fat is distributed — a strong, simple predictor of cardiometabolic risk. A higher ratio indicates more abdominal ("apple-shaped") fat, which carries greater health risk than fat stored on the hips and thighs.

Waist Circumference (cm)

Hip Circumference (cm)

Fill in the required fields to see your result.

Key differences

	Army Body Fat Calculator	Waist-to-Hip Ratio Calculator
Category	Fitness	Health
Inputs required	5	2
Result	Body-fat percentage (%)	Waist-to-Hip Ratio
What it does	Estimate body-fat percentage using the U.S. Army circumference-based method (AR 600-9). Uses neck, waist, height for men, and neck, waist, hips, height for women.	Divides your waist circumference by your hip circumference to gauge how body fat is distributed — a strong, simple predictor of cardiometabolic risk. A higher ratio indicates more abdominal ("apple-shaped") fat, which carries greater health risk than fat stored on the hips and thighs.