Body Fat Index Calculator
The body fat index calculator (or body fat percentage calculator) below uses standards based on the U.S. Navy Circumference Method. The equations used in Military body fat calculators have been found to be the most reliable form of body fat percentage measurement.
(Note: Don't confuse Body Fat Index with Body Mass Index (BMI) it's not the same thing. BMI categorizes your height / weight measurements only. See our BMI calculator chart.)
For men three body measurements (height, neck circumference and waist) are used to estimate the percentage of body fat.
Take measurements as following:
The body fat index calculator calculates body fat percentage using formulas from the Naval Health Research Center. Men and women require different calculations because men tend to accumulate fat around the waist (the apple body shape) while women tend to accumulate fat in the hips and buttocks (the pear body shape).
Body fat percentage categories by the American Council on Exercise:
I prefer the body fat percentage categories published by the World Health Organization and National Institutes of Health as they take age into account.
Body fat percentage categories for Women
Body fat percentage categories for Men
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