Conicity Index Calculator
Gauge abdominal fat from waist, weight and height
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
The conicity index compares your actual waist circumference to the waist a perfect cylinder of your same weight and height would have, using C = waist ÷ [0.109 × √(weight ÷ height)] (waist and height in meters, weight in kilograms). A value near 1.0 means a cylindrical body shape; higher values mean fat is concentrated more like two cones meeting at the waist.
Researchers developed it as a better predictor of cardiovascular risk than BMI, since it specifically isolates central (abdominal) fat — the kind most strongly linked to heart disease and type 2 diabetes — rather than just overall body mass, which BMI can't distinguish from a broad-shouldered, narrow-waisted build.
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