Body shape calculator · FFIT method
Find your body shape.
Enter three measurements. The calculator runs the same figure-classification method used in apparel body-scanning — no quiz, no guessing — and hands you your shape plus exactly how to dress it.
How the calculator decides your shape
Most “what's my body shape” tools ask you to eyeball yourself in a mirror. This one measures. It uses the FFIT method— the Female Figure Identification Technique developed at North Carolina State University's College of Textiles — which classifies a figure from the numeric gaps between bust, waist and hip circumferences. Two numbers do most of the work: how your bust compares to your hips (which side carries the width), and how much smaller your waist is(how defined it reads). A waist 9 inches or more below the bust or hips signals a defined-waist shape; anything less reads straighter.
The threshold that separates a balanced figure from a hip- or shoulder-dominant one is 3.6 inches — the FFIT cutoff for meaningful width difference. Below it you're balanced (hourglass or rectangle, depending on the waist); above it you're a pear or an inverted triangle, depending on which half is wider. When the waist is the fullest point of all, the shape is an apple.
The five shapes it can return
Bust and hips are within about an inch of each other, with a waist 9″+ smaller.
Hips are 3.6″+ wider than the bust — the width sits below the waist.
Bust or shoulders are 3.6″+ wider than the hips — width sits up top.
Bust, waist and hips are close in width, with a softly defined waist.
The waist is the fullest measurement — width is carried through the middle.
FFIT actually names nine shapes (it splits the hourglass into top and bottom variants and adds the spoon and diamond). Each collapses cleanly into one of these five, and the calculator shows you the precise FFIT class alongside your result.
Know your shape — now see the clothes on you
Upload a photo and try any outfit on your own body before you buy.
Frequently asked questions
How does a body shape calculator work?
It compares three or four measurements — bust, waist, hips, and optionally the high hip — and reads the differences between them. Where you're widest and how defined your waist is decide the shape. This calculator uses the FFIT method (Female Figure Identification Technique), the body-scanning classification developed at NC State's College of Textiles, so the result comes from fixed measurement thresholds rather than a guess.
How do I measure myself correctly?
Use a soft tape, keep it level, and don't pull it tight. Bust: around the fullest part, tape flat across the back. Waist: the narrowest point, usually just above the navel. Hips: the fullest part of the seat, feet together. High hip (optional): across the top of the hip bones, where a shelf would sit — it sharpens the pear-versus-spoon distinction. Measure over thin clothing or bare skin for the truest numbers.
What body shape is 36-27-40?
A 36-27-40 figure (bust 36, waist 27, hips 40) is a pear — technically a Bottom Hourglass in FFIT terms. The hips are 4 inches wider than the bust, past the 3.6-inch threshold that defines hip dominance, and the waist is well defined at 13 inches smaller than the hips. Dress it by balancing the shoulder line up top and keeping the lower half clean and dark. The calculator above returns the same answer for any measurements you enter.
What body shape is 34-28-36?
34-28-36 (bust 34, waist 28, hips 36) classifies as a rectangle — a near-hourglass, but not quite. The bust and hips are balanced (2 inches apart, inside the 3.6-inch threshold), yet the waist is only 6 inches smaller than the bust and 8 smaller than the hips, just under the 9-inch definition FFIT requires for an hourglass. In practice this is a straight figure with a softly defined waist: rectangle styling applies, and a belt or wrap top does the waist-defining work the measurements almost do on their own.
What is the difference between a pear and an hourglass?
Both can have a defined waist — the difference is balance. An hourglass has a bust and hips within about an inch of each other, so it's symmetrical top to bottom. A pear (triangle) has hips at least 3.6 inches wider than the bust, so the width sits below the waist. If your hips are clearly wider than your bust, you're a pear even with a nipped-in waist; if they're close to level, you're an hourglass.
Can men use a body shape calculator?
The FFIT thresholds here were derived from female body scans, so the shape names map to women's proportions. The underlying logic — where you carry width, how defined the waist is — still describes any figure, and the styling principle is universal: balance your widest and narrowest points. Men typically build from the shoulder-to-waist ratio instead; our styling guides cover both.
Is my measurement data stored?
No. The calculation runs entirely in your browser and nothing is sent to a server or saved. Refresh the page and it's gone.