Enter the waist and hip circumference into the calculator to determine the belly size. This calculator helps to estimate the difference between the waist and hip measurements, which can be an indicator of body shape and health risks.

Belly Size Formula

The following formula is used to calculate the belly size.

BS = WC - HC

Variables:

  • BS is the belly size (inches)
  • WC is the waist circumference (inches)
  • HC is the hip circumference (inches)

To calculate the belly size, subtract the hip circumference from the waist circumference.

What is Belly Size?

Belly size is a measurement that can be used to assess abdominal fat and potential health risks. A larger belly size, as indicated by a higher waist-to-hip ratio, can be associated with an increased risk of conditions such as heart disease, diabetes, and metabolic syndrome. It is important to maintain a healthy belly size through diet and exercise to reduce these risks.

How to Calculate Belly Size?

The following steps outline how to calculate the Belly Size.


  1. First, measure the waist circumference at the narrowest part of the torso (WC).
  2. Next, measure the hip circumference at the widest part of the hips (HC).
  3. Use the formula BS = WC - HC to calculate the Belly Size (BS).
  4. Finally, compare the Belly Size with the calculator above to verify your results.

Example Problem : 

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

waist circumference (WC) = 36 inches

hip circumference (HC) = 40 inches