What is considered a healthy body fat range for athletic fitness?

Athletes typically aim for 6-13% (Men) and 14-20% (Women); average healthy fitness ranges are 14-17% (Men) and 21-24% (Women).

US Navy Body Fat TapeHealth

US Navy Body Fat Tape Measure Calculator (Circumference Method)

Calculate your precise body fat percentage, fat mass, and lean muscle mass using simple tape measurements of your neck, waist, hips, and height according to the official United States Navy body composition standard.

Health & Wellness Fitness & Sports Medical & Clinical

Calculated Result

US Navy Body Fat Percentage

23.5%

Calculator Inputs

Biological Sex

Body Weight (kg)

Quick select:

Height (cm)

Quick select:

Neck Circumference (cm)

Quick select:

Waist Circumference (cm)

Quick select:

Hip Circumference (cm for Females)

Quick select:

US Navy Body Fat Percentage

23.5%

Total Fat Mass (kg)

17.6 kg

Lean Body Mass (kg)

57.4 kg

Body Composition Breakdown (Lean Mass vs Fat Mass)

Lean Mass

57.4 kg(77%)

Fat Mass

17.6 kg(23%)

This tape-based formula is highly accurate for fitness assessments. For medical-grade body composition, DEXA scans provide the gold standard.

This tool is a mathematical wellness and fitness estimation model for general educational guidance only. The results do not constitute medical diagnosis, clinical advice, or treatment plans. Always consult a qualified physician or certified dietitian before starting any dietary regimen, exercise program, or making health decisions.

Calculation Methodology

Men: % Body Fat = 86.010 * log10(Waist - Neck) - 70.041 * log10(Height) + 36.76. Women: % Body Fat = 163.205 * log10(Waist + Hip - Neck) - 97.684 * log10(Height) - 78.387.

Frequently Asked Questions

Neck: Just below the larynx (Adam's apple); Waist (Men): At navel level; Waist (Women): At narrowest point; Hips (Women): At widest part of the buttocks.