Body Fat Calculator

Estimate body fat percentage with the US Navy tape method. Estimate body fat percentage at home using the US Navy method — height, neck, waist and hip measurements with a tape. Includes fitness category chart. Free body fat calculator.

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Tentang Body Fat Calculator

The US Navy circumference method estimates body fat from simple tape measurements — neck, waist (plus hips for women) and height — and has tracked within a few percent of lab methods for decades. Enter your measurements and this calculator returns your estimated body fat percentage, your fitness category, and your estimated lean body mass. Measurements are most reliable first thing in the morning, with the tape snug but not compressing skin.

Cara memakai Body Fat Calculator

  1. Select your sex — the formulas differ.
  2. Measure height, neck and waist (hips for women).
  3. Enter the measurements in cm or inches.
  4. Read your body fat estimate and category.

Fitur utama

How accurate is the Navy method?
Typically within 3–4% of hydrostatic weighing when measurements are taken consistently. Its biggest strength is repeatability — track the trend, not just one reading.
What is a healthy body fat percentage?
Roughly 10–20% for men and 18–28% for women is considered fit. Athletes run lower; essential fat below 3% (men) or 10–13% (women) is unsafe.

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