Body Fat Calculator
Free body fat calculator — updated for 2025. Accurate, instant, no sign-up needed.
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Body Fat Percentage Calculator
US Navy method — accurate without special equipment
Body Fat %
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Category
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Fat Mass
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Lean Mass
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Fitness Level
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Body Fat % Categories
- Essential Fat: 2–5% (men), 10–13% (women)
- Athletic: 6–13% (men), 14–20% (women)
- Fitness: 14–17% (men), 21–24% (women)
- Average: 18–24% (men), 25–31% (women)
- Obese: 25%+ (men), 32%+ (women)
How accurate is the Navy method?
Accurate to within 3–4% for most people. DEXA scans are the gold standard (~1% accuracy) but require a medical facility.