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YMCA Body Fat Calculator

Estimate body fat with the simple YMCA tape method.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

The YMCA body fat method estimates body-fat percentage from just two measurements — body weight and waist circumference — using a regression equation developed to approximate results from more elaborate methods like skinfold calipers or hydrostatic weighing, without needing any special equipment beyond a scale and a tape measure. Separate formulas exist for men and women since fat distribution patterns differ by sex.

Gyms, YMCAs, and fitness trainers popularized this method because it's fast, cheap, and repeatable for tracking a member's progress over time without a specialist on hand, even though it's less precise than DEXA scans, BOD POD, or professional caliper testing. It remains a useful, low-friction way to get a directional body-fat estimate and track trends rather than an exact clinical number.

This calculator takes your weight and waist measurement and returns an estimated body-fat percentage using the YMCA tape method.

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