Body Fat Calculator

tou calo

Estimate your body fat percentage using the US Navy method — the most accurate formula without lab equipment.

📏 How to measure correctly

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Neck: Measure just below the larynx (Adam's apple), sloping slightly downward at the front.

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Waist: At the narrowest point — usually at the navel level. Keep stomach relaxed, don't suck in.

🟣

Hip (women only): At the widest point of the hips and buttocks.

Your measurements

Gender

Age

yrs

Weight (kg)

Height (cm)

Neck circumference

Waist circumference

Hip circumference (widest point)

Please fill in all fields with valid measurements.

Body Fat Percentage

US Navy Method · estimated

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% body fat

— Calculate to see your category

Essential Athlete Fit Average Obese

Fat Mass

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Lean Mass

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Ideal Fat%

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% target

US Navy formula · Results are estimates · Individual variation ±3–4%

Track your nutrition to reach your body goal Snap any meal — Tou Calo counts calories in 3 seconds

Fill in your measurements above and click Calculate

Formula: US Navy Method (Hodgdon & Beckett) · Not medical advice · Consult a professional for clinical body composition assessment.