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Body Fat % Calculator

Estimate your body fat percentage using the Navy method (neck, waist, hip measurements). Get instant results based on proven formulas.

Neck (cm)

Waist (cm)

Hip (cm, females only)

Height (cm)

Gender

Result

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About the Body Fat % Calculator

Estimate your body fat percentage using the Navy method (neck, waist, hip measurements). Get instant results based on proven formulas.

Estimate your body fat percentage using the Navy method (neck, waist, hip measurements). This calculator is completely free — no sign-up, no email, no paywalls. Results are estimates; always verify with a qualified professional for high-stakes decisions.

Frequently Asked Questions

How accurate is this calculator?

Based on validated formulas. Individual variation means results are estimates — use as a guide.

Should I consult a doctor?

Yes — always consult a healthcare professional before starting a new diet or exercise programme.

How often should I recalculate?

Recalculate every 4–8 weeks or when your weight, activity level, or goals change.

Are metric or imperial units used?

Metric (kg, cm). To convert: 1 lb = 0.453592 kg; 1 inch = 2.54 cm.

Body Fat % Calculator

About the Body Fat % Calculator

Frequently Asked Questions

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