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HQ8T

Body Fat Calculator

Body fat % with the US Navy tape method.

Sex
Units
cm
cm
cm
kg
Body fat
16.9%
Fitness
Fat mass
12.7 kg
Lean mass
62.3 kg
CategoryMenWomen
Essential fat2–5%10–13%
Athletes6–13%14–20%
Fitness14–17%21–24%
Average18–24%25–31%
Obese25%+32%+

Uses the US Navy tape-measure method, usually within 3–4% of lab tests. Measure in the morning, relaxed, with the tape snug but not tight.

How to use

  1. 1Choose male or female and cm or inches.
  2. 2Measure your height, neck and waist (and hips for women).
  3. 3Optionally add your weight for fat and lean mass.
  4. 4See your body fat % and category.

Frequently asked questions

How accurate is the tape-measure method?

Usually within 3–4% of lab methods if you measure carefully. Measure twice and use the average.

What is a healthy body fat percentage?

Roughly 14–24% for men and 21–31% for women. Athletes are lower.

Where exactly should I measure my waist?

Men: at the navel. Women: at the narrowest point of the waist. Keep the tape level and don't pull in your stomach.

Is body fat better than BMI?

It says more about health than BMI, because BMI can't tell muscle from fat. Use both together.

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