A Body Shape Calculator is a tool used to determine an individual's body type based on their measurements. It takes into account the bust, waist, and hip measurements to categorize the body into different shapes such as Hourglass, Rectangle, Inverted Triangle, or Pear.
The Formula
The body shape is determined by calculating ratios between different body measurements:
Bust-to-Waist Ratio: \[BWR = \frac{Bust}{Waist}\]
Hip-to-Waist Ratio: \[HWR = \frac{Hip}{Waist}\]
Waist-to-Hip Ratio: \[WHR = \frac{Waist}{Hip}\]
Where:
Bust, Waist, and Hip are measurements in centimeters or inches
Calculation Steps
Measure bust, waist, and hip circumferences
Calculate Bust-to-Waist Ratio (BWR)
Calculate Hip-to-Waist Ratio (HWR)
Calculate Waist-to-Hip Ratio (WHR) if needed
Determine body shape based on these ratios
Body Shape Determination
Hourglass: |BWR - HWR| ≤ 0.2 and WHR < 0.75
Rectangle: BWR < 1.05 and HWR < 1.05
Inverted Triangle: BWR > HWR
Pear: HWR > BWR
Example Calculation
Let's calculate the body shape for a person with the following measurements:
Bust: 92 cm
Waist: 76 cm
Hip: 98 cm
Calculate BWR:
\[BWR = \frac{92}{76} = 1.21\]
Calculate HWR:
\[HWR = \frac{98}{76} = 1.29\]
Calculate WHR:
\[WHR = \frac{76}{98} = 0.78\]
Determine body shape:
|BWR - HWR| = |1.21 - 1.29| = 0.08 ≤ 0.2, but WHR = 0.78 ≥ 0.75
HWR > BWR, so this indicates a Pear shape.
Visual Representation
This visual representation shows the calculated body shape for the example measurements. The blue ellipse represents the bust, the green ellipse represents the waist, and the red ellipse represents the hips. The relative sizes of these ellipses illustrate the Pear shape, where the hips are larger than the bust.
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