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Body Roundness Index Calculator

Find your Body Roundness Index from your waist circumference and height, and see your body-shape category.

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

This calculator finds your Body Roundness Index (BRI), a body-shape measure developed as an alternative to BMI that models the body's cross-section as an ellipse using waist circumference and height, producing a score that correlates with visceral fat and cardiometabolic risk better than BMI does for some populations. Enter your waist and height to see your BRI and whether it falls in the low, normal, or high range.

Researchers and health-conscious individuals use it alongside BMI and waist-to-height ratio for a fuller picture of body shape, since BRI doesn't require weight and captures central fat distribution that BMI alone misses. It's a screening estimate, not a diagnostic tool.

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