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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.

Fitness

Body Fat Percentage Calculator

Estimate body fat percentage using the US Navy circumference method (waist, neck, and for women hip measurements). Use it as a no-equipment-needed alternative to skinfold calipers, BIA, or DEXA for tracking body composition trends.

Gender

Height (cm)

Waist Circumference (cm)

Neck Circumference (cm)

Hip Circumference (Females Only) (cm)

Fill in the required fields to see your result.

Key differences

	Army Body Fat Calculator	Body Fat Percentage Calculator
Category	Fitness	Fitness
Inputs required	5	5
Result	Body-fat percentage (%)	Body Fat Percentage (%)
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.	Estimate body fat percentage using the US Navy circumference method (waist, neck, and for women hip measurements). Use it as a no-equipment-needed alternative to skinfold calipers, BIA, or DEXA for tracking body composition trends.