Body Fat Calculator | Estimate Body Fat Percentage

The US Navy method (using tape measurements) is generally more accurate than BMI because it accounts for body composition (waist/neck size) rather than just height and weight. BMI cannot distinguish muscle from fat.

Waist: Measure at the navel (belly button) level, keeping the tape horizontal and snug but not compressing the skin. Neck: Measure just below the Adam's apple (larynx). For women, also measure hips at the widest point. Measure in the morning before eating for most consistent results.

For men: Essential fat 2-5%, Athletes 6-13%, Fitness 14-17%, Acceptable 18-24%, Obese 25%+. For women: Essential 10-13%, Athletes 14-20%, Fitness 21-24%, Acceptable 25-31%, Obese 32%+. These ranges are general guidelines; consult a health professional for personalized assessment.

The US Navy method has a margin of error of about ±3-4% compared to DEXA scan (gold standard). It is more accurate than BMI but less precise than hydrostatic weighing or DEXA. Accuracy improves with careful, consistent measurements taken multiple times and averaged.

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