How the Body Shape Calculator Classifies Your Figure
A body shape describes how your bust, waist and hip measurements relate to one another, and it is the starting point stylists use to suggest clothes that flatter a figure. This calculator takes those three measurements and sorts your figure into one of the classic categories, hourglass, pear, apple or rectangle, while showing you the exact thresholds and your own ratios so the result feels grounded rather than arbitrary. It is built for anyone shopping for clothes who wants to understand which cuts suit them, for people curious about the shape they hear referenced in fashion, and for those who want the numbers behind a label instead of a vague guess. Importantly, it is a styling tool, not a health measure.
The method compares your three circumferences using simple ratio rules that fashion sources widely share. If your hips are more than five percent larger than your bust, you are classed as pear or triangle, the most common female shape, where the lower body is wider than the upper. If your bust is more than five percent larger than your hips, you are apple or inverted triangle, with a broader upper body. When bust and hips are within five percent of each other, the waist decides between the last two: if your waist is 75 percent or less of your bust measurement you are an hourglass, the balanced shape with a defined waist, and if the waist is more than 75 percent of the bust you are a rectangle, where the three measurements run close to a straight line. The tool shows each of these thresholds and prints your waist-to-bust percentage and your bust-versus-hip difference, so you can see precisely why you were classified.
Work through a few examples. Someone measuring 36 inch bust, 26 inch waist and 38 inch hip has hips 5.6 percent larger than the bust, which crosses the five percent line, so they are a pear. Reverse it to 38 bust, 26 waist, 36 hip and the bust is 5.6 percent larger than the hips, making them apple or inverted triangle. Now take balanced 36 bust and 36 hip with a 26 inch waist: the waist is 72 percent of the bust, under the 75 percent cut, so they are an hourglass. Widen that waist to 30 inches with the same 36 bust and hip and the waist is now 83 percent of the bust, above the cut, so the same person is classed as a rectangle. The unit does not matter because only the ratios count, so centimetres give the same answer.
The result guides practical, everyday choices. A pear-shaped shopper learns to draw the eye upward with detailed or structured tops and to choose A-line skirts that skim the hips. An apple or inverted-triangle figure balances broad shoulders with flared trousers and fuller skirts. An hourglass looks for fitted styles and belted waists that follow the natural curve rather than hiding it. A rectangle can create the impression of curves with wrap dresses, peplum tops and layering. Because the tool prints the ratios, a shopper can also see how close they are to a boundary, which explains why they might sit between two shapes and suit elements of both.
A couple of honest caveats matter. These categories come from the fashion and apparel industry, specifically the kind of figure typing behind the Female Figure Identification Technique, and they are a styling heuristic, not a medical or fitness measurement. Your body shape says nothing about your health, and the exact percentage cut-offs vary a little between fashion sources, so a borderline result should be read as approximate. For a genuinely health-relevant number, the waist-to-hip ratio is the metric linked to health risk, and you can find it with the Waist-to-Hip Ratio Calculator. Consult a qualified professional for any health concern rather than reading meaning into a fashion category. The whole calculation runs in your browser, so your measurements are never uploaded, saved or shared.
