Body Fat Calculator

Estimate your body fat percentage using the US Navy circumference method or BMI-based formula

Estimated Body Fat
17.5%
Fitness
Fat Mass
31.5 lbs
Lean Mass
148.5 lbs

Body Fat Categories (male)

Essential Fat2-5%
Athletic6-13%
Fitness14-17%
Acceptable18-24%
Obese25%+

How to use:

  • • The US Navy method uses circumference measurements — more accurate than BMI-based
  • • Measure waist at the navel level; neck below the larynx; hips at the widest point (females)
  • • Use a flexible tape measure and measure 3 times, taking the average
  • • The BMI method only needs weight and height but is less precise
  • • For medical-grade results, use DEXA scan or hydrostatic weighing

Body Fat Calculator FAQ

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