Body Fat Estimate
(YMCA formula)
Weight lbs
Waist (at navel)

Body Fat   %
Fat Mass   lbs
Lean Mass   lbs
Body Fat Category

Body Fat Categories Table
Category Women (% fat) Men (% fat)
Essential Fat 10%-13% 2%-5%
Athletic 14%-20% 6%-13%
Fit 21%-24% 14%-17%
Acceptable 25%-31% 18%-25%
Obese 32% + 26% +

All calculators are made available as self-help tools for your independent use with results based on information provided by the user. All examples are hypothetical and are for illustrative purposes only. Calculated results are believed to be accurate but results are not guaranteed. Exercise, Fitness, Health, and Weight Loss calculators are not for providing medical advice and should not be used as a substitute for advice from a medical professional. Users are advised to check with a physician before undertaking any strenuous exercise or diet plan.
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A title for these calculator results that will help you identify it if you have printed out several versions of the calculator.
Choose US or Metric units.
Select your gender.
Your current scale weight.
The approximate percentage of your body's mass that is made up of fat.
The portion of your weight that is fat.
The portion of your weight that is lean (not fat).
Your body fat category depends on your gender and your body fat percentage.
This table shows you the Body Fat Range for each Classification so you can see how close your calculated Body Fat percentage is to the next Body Fat Classification range.