US Navy Method · ACE Categories

Body Fat Percentage Calculator

Measure your waist, neck (and hips if female) to calculate body fat percentage without scales or expensive equipment. Uses the validated US Navy circumference method.

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cm
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cm

Measurement guide:

  • Waist: measure at navel level, exhale naturally
  • Neck: measure below larynx, tape slightly downward-sloping
  • Hip: measure at widest point across buttocks
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