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Body Composition

Porcentaje de Grasa Corporal

Forget the common scale. Discover your real composition of lean and fat mass using the scientific US Navy method.

Just below the Adam's apple.
Men: At navel. Women: Narrowest part.

Measurements Needed

Use a flexible tape measure to fill in the data. Accuracy depends on the quality of your measurements.

Your Porcentaje de Grasa Corporal
--%
--
Fat Lean Mass
Fat Mass
-- kg
Lean Mass
-- kg

Why measure Porcentaje de Grasa Corporal?

Weight on the scale doesn't tell the whole story. Two people with the same weight and height can look and feel completely different depending on their body composition (muscle to fat ratio).

About the U.S. Navy Method

This method estimates body density using equations based on circumferences. While not as precise as a DEXA scan or hydrostatic weighing, it is considered the most reliable home method, with an acceptable margin of error of 3-4% when measurements are taken correctly.

Body Fat Categories (General Reference)

Category Men Women
Essential Fat 2-5% 10-13%
Athletes 6-13% 14-20%
Fitness 14-17% 21-24%
Acceptable 18-24% 25-31%
Obesity 25%+ 32%+