Enter the waist circumference and body weight into the calculator to determine the Conicity Index. This calculator can also evaluate any of the variables given the others are known.

Conicity Index Formula

The following formula is used to calculate the Conicity Index.

CI = WC / (0.109 * sqrt((BW)^3))


  • CI is the Conicity Index
  • WC is the waist circumference (cm)
  • BW is the body weight (kg)

To calculate the Conicity Index, divide the waist circumference by the product of 0.109 and the cube root of the body weight.

What is a Conicity Index?

The Conicity Index is a mathematical calculation used to measure the distribution of body fat. It is calculated using the waist circumference and hip circumference, and is often used in medical and health research to assess obesity and related health risks. A higher Conicity Index indicates a higher concentration of body fat around the waist, which is associated with a higher risk of conditions such as heart disease and diabetes.

How to Calculate Conicity Index?

The following steps outline how to calculate the Conicity Index (CI).

  1. First, determine the waist circumference (WC) in centimeters (cm).
  2. Next, determine the body weight (BW) in kilograms (kg).
  3. Next, calculate the value inside the square root: (BW)^3.
  4. Next, multiply the value inside the square root by 0.109.
  5. Finally, divide the waist circumference (WC) by the result obtained in the previous step to calculate the Conicity Index (CI).

Example Problem:

Use the following variables as an example problem to test your knowledge.

Waist circumference (WC) = 80 cm

Body weight (BW) = 70 kg