Body Shape Calculator: Find Your Shape in Minutes
Your body shape is not your size, your weight, or a judgement. It is simply the relationship between four measurements — bust, waist, high hip and hips. Once you know that relationship, a lot of shopping mysteries solve themselves: why one dress feels made for you, why another pulls, gaps or adds bulk exactly where you do not want it.
This body shape calculator does the comparing for you. Measure in inches or centimetres, enter the numbers, and it classifies you into one of seven shapes — hourglass, bottom hourglass, top hourglass, spoon, triangle (pear), inverted triangle or rectangle — with your waist-to-hip ratio and styling tips for your result.
Use the result as a starting point, not a label. Most women sit near a border between two shapes, and the most useful takeaway is usually which part of an outfit to emphasise and which part to keep simple.
Contents
- Body shape calculator
- How to measure accurately
- Common measuring mistakes
- The 7 body shapes explained
- How the calculator classifies you
- Shape is not size
- How shape can shift after 50
- Dressing table: what to choose and skip
- Keep exploring
- Frequently asked questions
Body Shape Calculator
Enter your measurements — in inches or centimetres. High hip is optional, but it helps tell a spoon shape from a bottom hourglass.
How to measure: tape around the fullest part of your bust, over your shoulder blades, keeping the tape level and not pulling tight.
How to measure: tape around your natural waist — the narrowest part of your torso, usually just above your belly button. Breathe out normally; do not hold your breath.
How to measure: tape around your body where the top of your hip bones sit, about 3–4 inches below your waist, over the fullest part of your upper hip.
How to measure: stand with feet together and tape around the fullest part of your hips and bottom, keeping the tape level all the way round.
How to Measure Accurately
Measure over underwear or a thin, unpadded bra, standing in front of a mirror so you can check the tape stays level. Keep the tape snug and flat against your body — it should not dig in, slide around, or sit over a bulky seam. Take each measurement twice; if the two readings differ, measure a third time and use the middle value.
Bust
Run the tape around the fullest part of your bust, across your shoulder blades at the back. Keep it level and keep your arms relaxed at your sides. Do not pull it tight enough to compress you — you are measuring your body, not shaping it.
Waist
Find your natural waist: the narrowest part of your torso, usually just above your belly button and below your ribs. If you are unsure, bend gently to one side — the crease that forms is your natural waist. Breathe out normally and read the tape. Never hold your breath or pull your stomach in; a waist measured while you are holding everything in will flatter the number and mislead the calculator.
High hip
Measure around your body at the top of your hip bones, roughly three to four inches below your waist, where your hips start to widen. This optional measurement matters because it separates a spoon shape — where the high hip is full compared with the waist — from a bottom hourglass.
Hips
Stand with your feet together and run the tape around the fullest part of your hips and bottom. Check in the mirror that the tape is level all the way round and not riding up at the back.
Common Measuring Mistakes
Measuring over clothes. Jumpers, padded bras and waistbands add inches in exactly the places that decide your shape. Measure over underwear only.
A sloping tape. A tape that dips at the back reads larger than you are. The mirror check takes five seconds and fixes most bad readings.
Holding your breath at the waist. This is the most common mistake of all. Your everyday waist — breathing normally — is the one your clothes have to fit.
Guessing the high hip. The high hip is not the hip. Measuring too low duplicates your hip number and hides a spoon shape.
Measuring once, on a bad day. Bloating, posture and time of day all nudge numbers. If a result surprises you, re-measure on another morning before you shop from it.
The 7 Body Shapes Explained
Hourglass
Bust and hips are closely balanced and the waist is at least nine inches smaller than the bust. The classic balanced shape — definition at the waist is the whole story.
Bottom hourglass
Like an hourglass, the waist is clearly defined against both bust and hips, but the hips are a few inches wider than the bust. Waist definition with a little extra curve low down.
Top hourglass
The mirror image: the bust is a few inches fuller than the hips, while the waist stays clearly defined against both. Waist definition with more presence up top.
Spoon
Hips are wider than the bust and the waist is defined, but the high hip is full compared with the waist — a ratio of about 1.193 or more. That high, full shelf at the high hip is what separates a spoon from a bottom hourglass, and it changes where hems, belts and pockets should sit.
Triangle (pear)
Hips are at least about 3.6 inches wider than the bust, and the waist, while smaller than the hips, is less sharply defined against the bust than in the hourglass family. Curve sits through the hip and thigh.
Inverted triangle
Bust and shoulders are at least about 3.6 inches broader than the hips, with less waist definition against the bust. Strength sits up top; styling usually adds easy volume below.
Rectangle
Bust, waist and hips fall within a few inches of each other, with gentle waist definition — differences under about 3.6 inches and a waist less than nine inches smaller than bust or hips. A straight, athletic line that wears column silhouettes beautifully and can create a waist whenever it wants one.
How the Calculator Classifies You
The calculator, in the spirit of the FFIT (Female Figure Identification Technique) research approach, works on differences, not raw numbers. It asks three plain questions. First, how far apart are bust and hips — within an inch or so, or is one at least 3.6 inches larger? Second, how much smaller is your waist — is it nine or ten inches smaller than bust or hips, which counts as clearly defined? Third, if you gave a high hip, how full is it compared with your waist?
Hourglass-family shapes need a clearly defined waist against both bust and hips. That detail matters: a textbook 34–28–40 figure has a waist twelve inches smaller than her hips, but only six inches smaller than her bust, so she classifies as triangle (pear), not bottom hourglass. Likewise, a 40–30–34 figure classifies as inverted triangle rather than top hourglass, because her waist is not defined against her hips. If nothing matched perfectly, the calculator would fall back to the closest shape — in practice the seven rules above cover the combinations real measurements produce.
Shape Is Not Size
Shape is proportions at any size. Two women can both be rectangles at very different dress sizes, and two women in the same size can be an hourglass and an inverted triangle. Your size can change a great deal across the years while your underlying proportions — where you carry width, and how your waist relates to it — stay recognisably the same. That is why shape advice outlasts any single wardrobe: it is about cut and placement, not about the number on a label.
How Shape Can Shift After 50
Proportions can move, especially around and after menopause. Many women find the waist thickens even when their weight barely changes, as fat distribution shifts toward the middle. Posture changes, a little height loss, and softer muscle tone through the shoulders and hips can also nudge bust and hip readings. A lifelong hourglass may drift toward rectangle; a rectangle may find her waist definition gentler still. None of this is a problem to fix — it is simply a reason to re-measure once in a while and to favour the styling moves for the shape you have now: belts and wraps placed a touch higher, structure at the shoulder, and fabrics with enough body to skim.
Dressing Table: What to Choose and Skip
| Shape | Necklines to choose | Bottoms & dresses to choose | Skip |
|---|---|---|---|
| Hourglass | V, scoop, sweetheart | High-rise, wrap and belted dresses | Boxy, shapeless cuts |
| Bottom Hourglass | Wide scoop, detail at neckline | A-line, fit-and-flare, dark plain bottoms | Hip pockets and embellishment |
| Top Hourglass | V and open necklines | A-line skirts, fuller trousers | High closed necks, shoulder bulk |
| Spoon | Most necklines; keep focus up | Empire, fit-and-flare, flat fronts | Belts or hems on the high hip |
| Triangle (Pear) | Detail, structure, statement necklines | A-line, wide-leg, bootcut, dark bottoms | Light skinny bottoms, hip detail |
| Inverted Triangle | V, scoop, deep necklines | A-line, wide-leg, patterned bottoms | Puff sleeves, boat necks, skinny bottoms |
| Rectangle | Almost any; add texture | Column dresses, belted wraps, peplums | Baggy cuts with no definition |
Quick rule: emphasise what is balanced, add volume where you are narrower, keep detail off where you are widest, and let your waist — or a belt standing in for one — do the talking.
Keep Exploring
See all of our calculators and quizzes on the tools page, find the foundation that makes every outfit sit better with our bra size calculator, and put your shape to work in quiet luxury outfits for women over 40, elevated casual outfits that look expensive and timeless old money outfit ideas.
Frequently Asked Questions
What measurements do I need for the body shape calculator?
You need bust, waist and hips. High hip is optional, but adding it helps the calculator tell a spoon shape from a bottom hourglass.
Can I use centimetres instead of inches?
Yes. Switch the unit toggle to centimetres and enter your measurements in cm — the calculator converts them to inches (dividing by 2.54) before classifying you.
What is a good waist-to-hip ratio?
The calculator simply reports your ratio — waist divided by hips — with no pass or fail. Lower ratios mean a more defined waist compared with the hips; use it to track your own proportions, not to judge them.
Why did I get rectangle when I feel curvy?
Rectangle is about differences, not curves in the mirror. If your waist is less than nine inches smaller than your bust or hips, the classification is rectangle even on a curvy figure — and rectangle styling tips, like belts and wraps, are designed exactly for creating definition.
Can my body shape change after 50?
Yes, proportions can shift. Waist thickening, posture changes and softer muscle tone after menopause can move you toward a neighbouring shape, which is why re-measuring every few years is worthwhile.
What if I am between two shapes?
That is very common. Read the tips for your result first, then borrow the one or two tips from the neighbouring shape that match where you feel borderline — for example, a rectangle near hourglass often loves hourglass wrap dresses too.
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