Health Tools
Body Fat
Calculator
Calculate your body fat percentage using the accurate US Navy method. Enter your measurements to get fat mass, lean mass, and your fitness category.
Your Measurements
Waist must be greater than neck circumference.
Measure at navel level
Just below the larynx, sloping slightly downward
Body Fat Percentage
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Enter your measurements
Body Fat %
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Category
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Fat Mass
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Lean Mass
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Body Composition
About this calculator
Body fat percentage measures the proportion of fat mass relative to total body mass. This calculator uses the US Navy circumference method, which estimates body fat from neck, waist, and hip measurements. It's a practical alternative to lab-based methods like DEXA scans, though less precise.
General healthy ranges are approximately 10–20% for men and 18–28% for women. Athletes may be below these ranges. These are population averages used as general reference points — they are not clinical diagnostic thresholds, and optimal ranges vary by age and individual physiology.
For informational purposes only. Not a substitute for professional medical advice. Consult a qualified healthcare provider before making health decisions.