Body Shape Calculator
Enter your bust, waist and hip measurements to discover your body shape and get expert bra recommendations matched to your proportions.
Enter bust, waist and hip measurements. The result appears instantly with bra style tips matched to your proportions.
+ Add shoulder width for extra accuracy
A body shape calculator determines your shape by comparing the ratios between your bust, waist, and hip measurements. The five body shapes are pear (triangle), hourglass, inverted triangle, rectangle, and apple (round). Knowing your shape helps you choose bras, swimwear, and clothing cuts that balance your proportions and fit the way they should.
How common is each body shape?
Research across thousands of women’s measurements consistently places most people in one of five categories. Many people sit at the boundary between two shapes — which is normal and means tips from both apply to you.
Measure your waist at its narrowest point — usually 1–2 inches above the navel.
Measure hips at their fullest point, tape parallel to the floor, feet together.
How body shape is calculated
Your body shape is determined by the proportional ratios between your three key measurements — not by your overall size or weight. The same logic applies at every size: a 32-24-35 and a 42-34-46 can both be hourglass shapes.
| Shape | Key ratio rule | Example measurements (inches) |
|---|---|---|
| Hourglass | Bust ≈ hips; waist 9+ in smaller than both | 36–27–36 / 38–28–38 |
| Pear (Triangle) | Hips 3.6+ inches larger than bust | 34–28–40 / 36–30–42 |
| Inverted Triangle | Bust or shoulders 3.6+ in larger than hips | 40–30–35 / 42–32–37 |
| Apple (Round) | Waist is widest or near-widest point | 38–38–37 / 42–40–40 |
| Rectangle | Bust, waist, hips within ~6 in of each other | 36–32–37 / 38–34–38 |
The 5 body shapes: measurements, traits and bra fit tips
Each shape has distinct proportional characteristics — and each benefits from specific bra styles that balance the silhouette and improve overall comfort and fit.
🍐 Pear (Triangle)
Hips are notably wider than the bust. The waist is usually defined. The upper body is narrower, making the hips the widest point of the silhouette.
- Balconette styles draw the eye upward
- Padded or push-up cups balance the upper body
- Wide straps reduce shoulder marks
- Avoid plain minimizers — they make the upper body appear even narrower
⌛ Hourglass
Bust and hips are proportionally balanced — usually within 1 inch of each other — with a waist at least 9 inches smaller. The most symmetrical shape.
- Balconette, plunge, and half-cup styles work beautifully
- Underwire bras support and lift the natural bust shape
- Avoid heavy padding — it throws off natural bust-to-hip balance
- Check sister sizes if band fits but cup gaps
🔺 Inverted Triangle
Shoulders or bust are notably wider than the hips. The upper body dominates the silhouette, often creating an athletic or strong appearance.
- Racerback bras visually reduce shoulder width
- Minimizer bras reduce bust projection and emphasis
- Plunge styles draw the eye inward and downward
- Wireless bras suit athletic builds with broader ribcages
▭ Rectangle
Bust, waist, and hips all measure within a narrow range of each other. The silhouette is relatively straight with minimal waist definition — the most common shape.
- Push-up and plunge bras create visual curves
- Padded bralettes add shape for smaller busts
- Longline bras add definition through the torso
- Ruffled or embellished cups add visual dimension
🍎 Apple (Round)
Volume is concentrated through the midsection. The waist is the widest or near-widest point. Legs are often slimmer relative to the upper body.
- Full-coverage bras create shape and prevent spillage
- Underwire lifts the bust away from the torso
- Side-smoothing panels improve silhouette
- Minimizer styles reduce projection for all-day comfort
A soft tape measure is all you need. Measure at the fullest point of the bust, keeping the tape level across your back.
How to measure correctly — step by step
Measurement accuracy is the single biggest variable in getting your correct body shape result. Follow these steps precisely for the most reliable reading.
- Bust: Wear your best-fitting non-padded bra. Wrap a soft tape measure around the fullest part of your chest, keeping it level across your back. It should lie flat without digging in — snug, not tight.
- Waist: Stand relaxed, feet together. Find the narrowest part of your torso — usually 1–2 inches above the navel. Exhale normally. Don’t hold your breath or pull the tape tight.
- Hips: Stand with feet together. Wrap the tape around the fullest part of your hips and seat — usually 7–9 inches below the waist — keeping the tape parallel to the floor.
- Shoulders (optional): Have someone help. Measure straight across your upper back from the outer edge of one shoulder to the other. Helps identify the inverted triangle shape when shoulders are wider than the bust.
- If your result feels off: Remeasure in underwear only, without pulling the tape. A 1-inch difference can push you across a shape boundary. If you land between two shapes, read the styling tips for both — they’ll both apply to you.
Best bra styles for every body shape
Your body shape determines which bra styles create the most flattering silhouette — independent of your cup size. Here’s the complete guide.
| Body Shape | Best Bra Styles | Avoid | Why |
|---|---|---|---|
| Pear | Balconette, padded push-up, bandeau, T-shirt bra | Plain minimizer, narrow straps | Adds upper body volume to balance wider hips |
| Hourglass | Balconette, plunge, half-cup, underwire T-shirt bra | Heavy padding | Supports and highlights natural proportions |
| Inverted Triangle | Racerback, minimizer, plunge, wireless, seamless | Heavily padded cups, wide set straps | Reduces upper body emphasis, balances silhouette |
| Rectangle | Push-up, plunge, padded bralette, longline | Plain soft cup (no shape effect) | Creates curves and adds definition through torso |
| Apple | Full-coverage, side-smoothing, underwire, minimizer | Strapless without boning, shelf bras | Lifts and shapes the bust away from the midsection |
Once you know your shape and exact bra size, finding the right fit is straightforward. Use our bra size calculator to get your band and cup, then filter Amazon by style and size.
Shop bras on Amazon →Body shape vs dress size vs bra size
These three concepts are frequently confused but measure completely different things. Understanding the distinction helps you shop smarter across every category of clothing.
| Concept | What it measures | Used for |
|---|---|---|
| Body shape | Proportional ratios between bust, waist and hips | Clothing cuts, bra styles, swimwear silhouettes |
| Dress / clothing size | Overall measurements mapped to a brand’s chart | Finding the right label number at a retailer |
| Bra size | Band circumference + cup volume relative to band | Selecting a bra that fits both band and cup |
Two people can wear the same dress size and have completely different body shapes — which is exactly why understanding your shape matters more than the number on a label.
Pregnancy commonly shifts the body toward a pear or apple shape temporarily.
Building upper body muscle often shifts the shape toward an inverted triangle.
Can your body shape change?
Yes — body shape shifts over time. Several common life factors change the measurement ratios between bust, waist, and hips:
| Life factor | Common shape shift |
|---|---|
| Weight gain in the midsection | Toward apple / rectangle |
| Weight gain in hips and thighs | Toward pear |
| Upper-body strength training | Toward inverted triangle |
| Pregnancy and post-partum | Toward pear or apple; often returns to previous shape |
| Menopause and hormonal changes | Often toward apple (waist widening) |
| Significant overall weight loss | Often toward rectangle |
| Ageing (50+) | Waist measurement tends to increase relative to hips |
Related tools and fit guides on Bra-Calculator.com
Body shape is one dimension of finding the perfect bra. Use these tools to complete your fit picture — every link below is a verified live page on this site.
Find your exact band + cup size from two measurements in under a minute.
Discover every sister size — same cup volume, different band width.
Identify your breast shape and get bra styles matched to your specific shape.
Diagnose exactly what’s wrong with your bra fit — with step-by-step fixes.
Convert your size between UK, US, EU, AU and 10+ international systems.
Complete guide to which bra styles work for every breast shape type.
Frequently asked questions
What is the most common body shape?
The rectangle is the most common body shape, estimated at around 46% of women in anthropometric research. In this shape, the bust, waist, and hips all fall within a similar measurement range with little waist definition. Many people sit on the border between rectangle and another shape — particularly hourglass or pear.
Can I have two body shapes at once?
Yes — body shapes exist on a spectrum. Many people sit right at the border between two types. For example, a “soft hourglass” has balanced bust and hip measurements but a less dramatically defined waist. If your result feels borderline, read the bra tips and styling advice for both shapes — they’ll both apply to you.
Is the hourglass shape really rare?
The classic hourglass — where bust and hips are within 1 inch of each other and the waist is at least 9 inches smaller — is estimated at around 8–12% of women, making it the second least common shape after apple. However, “soft hourglass” proportions (slightly looser ratio) are considerably more common and the calculator accounts for this borderline variation.
Does body shape affect which bra I should wear?
Yes — significantly. Body shape determines which bra styles work best for your silhouette, even if your cup size stays the same. For example, an inverted triangle benefits from minimizer or racerback styles that reduce upper-body emphasis. A pear shape benefits from balconette or padded cups that draw the eye upward. Use the bra size calculator to find your exact size, then use your shape to select the right style.
How does body shape relate to bra fit problems?
Your body shape creates predictable bra fit patterns. Inverted triangles often experience gaping cups despite needing a large cup volume. Apple shapes frequently find the band rolls up because of the fuller midsection. Pear shapes may notice the band rides up at the back because their narrower upper body creates less downward tension. Visit the bra fit problem solver to diagnose your specific issue.
Should I use this calculator if I am pregnant or post-partum?
You can, but note that measurements shift significantly during pregnancy and in the months following. Breast tissue and waist measurements change substantially — often moving toward a pear or apple profile temporarily. For bra sizing during or after pregnancy, use the bra size calculator directly and check results monthly, as your size can change by one or two cup sizes over this period.
What measurements do I need for the most accurate result?
You need three: bust at its fullest point (wearing a non-padded bra), waist at its narrowest point, and hips at their widest. An optional shoulder measurement improves accuracy for identifying the inverted triangle shape when the shoulders are wider than the bust. All measurements should be taken in centimetres or inches with a soft tape measure, standing upright, exhaling normally.
Does weight affect body shape?
Yes. Weight changes shift the measurement ratios between bust, waist, and hips, which can move you from one shape category to another. Weight gain distributed evenly tends to maintain your existing shape. Weight gain concentrated in the midsection often moves toward apple. Significant weight loss often results in a rectangle shape as measurements converge. It’s worth recalculating after any noticeable weight change.
Find the bra style that actually matches your shape
Use your body shape result with your exact bra size to choose bras that support your proportions, reduce fit problems, and feel better under everyday outfits.
