Body Shape Calculator

Find your body shape (hourglass, pear, triangle, inverted triangle or rectangle) from three measurements.

Units	lb / ft
Bust / chest	36.25 in
Waist (narrowest)	28.25 in
Hips (widest)	38.5 in

Units

Bust / chest

Waist (narrowest)

Hips (widest)

Body shape

Hourglass (top or bottom)

Curvy with a defined waist; one of bust or hips is a little larger.

Waist-to-hip ratio: 0.73
Bust − hip: -5.7 (cm)

About the Body Shape Calculator

Body shape describes how your bust, waist and hips compare. This uses the rules from the FFIT study of body shapes (Simmons et al., 2004), which compares the differences between the measurements in inches. It's for style and fit, not health.

The formula

Compare bust − hips, hips − waist and bust − waist

Hourglass: bust and hips within 1 in, waist 9 in smaller
Pear: hips 3.6 in+ larger than bust, defined waist
Rectangle: waist less than 9 in smaller than bust or hips

Worked example

Example: Body shape = Rectangle

Inputs: Units: lb / ft; Bust / chest: 29 in; Waist (narrowest): 23 in; Hips (widest): 31 in.
Formula: Compare bust − hips, hips − waist and bust − waist
Result: Body shape = Rectangle
Waist-to-hip ratio: 0.74
Bust − hip: -5.1 (cm)

Questions people ask

Does body shape change?

It can with weight change and age, but bone structure sets the basic frame.

Is one shape healthier?

For health, waist size matters most; see the waist-to-height ratio calculator.