Body Type Calculator
Find your body shape from four tape measurements — bust, waist, high hip, and hip. The calculator applies the published apparel-research rules for seven shape categories (hourglass, spoon, triangle, rectangle, and friends) and also reports your waist-to-hip ratio. Shapes are fit-and-styling vocabulary, not a score: every category is a normal way for a body to be.
Where the categories come from
The seven shape definitions used here were published in the International Journal of Clothing Science and Technology (Lee, Istook, Nam & Park, 2007), built from body-scan data to help clothing fit real people. They compare bust, waist, and hip circumferences with fixed cutoffs — for example, an hourglass needs bust and hip within about an inch of each other plus a clearly smaller waist, while a rectangle has less than 9 inches of bust-waist difference. The high-hip measurement separates a “spoon” (a shelf-like upper hip) from other hip-dominant shapes. Because the rules are hard-edged, landing near a boundary or in no category at all is common and means nothing more than tape geometry.
How it’s calculated
All measurements are converted to inches, then tested in order against the Lee et al. (2007) rules: hourglass (bust−hip ≤1″, hip−bust <3.6″, and bust−waist ≥9″ or hip−waist ≥10″), bottom hourglass (hip−bust 3.6–10″, hip−waist ≥9″, high-hip/waist <1.193), top hourglass (bust−hip 1–10″, bust−waist ≥9″), spoon (hip−bust >2″, hip−waist ≥7″, high-hip/waist ≥1.193), triangle (hip−bust ≥3.6″, hip−waist <9″), inverted triangle (bust−hip ≥3.6″, bust−waist <9″), rectangle (differences all inside those cutoffs). WHR = waist ÷ hip.
This is descriptive styling vocabulary, not a health assessment, target, or judgment — bodies of every category are normal. Results are educational estimates, not medical advice; for weight- or health-related questions, talk with a clinician rather than dressing-room math.
Worked example
Measurements of 36–28–39 (bust–waist–hip, inches) with a 32″ high hip: hip−bust is 3″, hip−waist is 11″, so the hourglass rule is met — shape: hourglass, WHR = 28 ÷ 39 = 0.72. Shifting the same waist to 33″ on a 38″ bust and 37″ hip instead satisfies the rectangle rule — the most common result in population studies.
Common mistakes
- Measuring over bulky clothing or pulling the tape tight enough to compress — both shift categories.
- Taking the waist at the navel instead of the natural (narrowest) waist.
- Skipping the high hip and wondering why a spoon reads as triangle or bottom hourglass.
- Reading the result as a ranking — the categories describe proportions for clothing fit, nothing else.
Where it is used
- Choosing silhouettes, rise heights, and tailoring priorities that fit your proportions.
- Online shopping filters and made-to-measure order forms.
- Pattern drafting and sewing adjustments.
- Alongside waist-to-hip ratio when the question is health rather than fit.
Frequently asked questions
Which measurements do I need?
Four circumferences, taken with a soft tape held level and snug but not tight: bust at the fullest point (wearing a fitted bra), natural waist at the narrowest point just above the navel, high hip around the upper hip bones about 7 inches (18 cm) below the waist, and hip at the fullest part of the seat. The high-hip value is optional and only refines the spoon category.
What if none of the categories fit me?
That is common and completely normal. The seven categories come from apparel research and have hard cutoffs, so plenty of real bodies sit near a boundary or outside every rule. The calculator will say so rather than force a label — use the ratios themselves for fit decisions.
Can men use this calculator?
The shape categories were derived from studies of women’s bodies for clothing design, so the labels translate poorly to male fit. Men can still use the tape measurements, and the waist-to-hip ratio output applies to everyone — the WHO uses 0.90 for men and 0.85 for women as the thresholds tied to higher metabolic risk.
Is my body shape a health indicator?
Shape labels are descriptive, not diagnostic. The health-relevant signal in these measurements is the waist-to-hip ratio, because abdominal fat carries more cardiometabolic risk than fat carried at the hips. For health questions, use WHR and waist-to-height ratio rather than the shape name.
How common is each shape?
A North Carolina State University analysis of more than 6,000 US women found roughly 46% rectangle, about 20% pear/triangle, about 14% apple/inverted-triangle, and only around 8% hourglass — a useful reality check on how rare the “idealized” shape actually is.