Dress Size Calculator:
find your true size in seconds.
Enter your bust, waist and hip measurements and get an instant match across US, UK, EU, AU and International sizing, plus a fit-preference adjustment, body shape estimate, and your size across 100+ dress brands like Zara, H&M, and Uniqlo.
Your measurements
Only bust is required. Add waist and hip for a much more accurate match.
Your estimated dress size
Estimates are based on standard size charts. Brands vary, always check a retailer's own chart when possible.
Did this calculator help you find your size?
Thanks for letting us know!
Built to be more useful than the average size calculator
Most dress size tools stop at one region and one number. This one goes further.
Every region at once
One calculation gives you US, UK, EU, AU and International sizes side by side, no separate tools per country.
Fit preference built in
Tell us if you like a fitted, regular, or relaxed silhouette and the recommendation shifts accordingly.
Body shape insight
See an estimated body shape (hourglass, pear, rectangle, apple, inverted triangle) from the same measurements, no extra steps.
Shareable results
Copy a link that reopens your exact result, handy for sharing with a friend or saving before you shop.
Privacy by design
Everything runs in your browser. Your measurements are never sent to a server or stored anywhere.
Free, instant, no signup
No email walls, no account. Enter your numbers and get an answer immediately.
How it works
Measure
Wrap a soft measuring tape around your bust, waist and hips, keeping it parallel to the floor.
Enter & choose fit
Type your measurements in inches or centimeters and pick fitted, regular, or relaxed.
Get your size
Instantly see your size across five sizing systems, plus a body shape estimate.
How to measure yourself
Accurate measurements make the biggest difference to your result. Use a flexible fabric measuring tape, wear form-fitting clothing (or underwear), and have someone help you if possible.
Bust
- Wear a well-fitting, non-padded bra.
- Wrap the tape around the fullest part of your bust.
- Keep the tape level and parallel to the floor, snug but not tight.
Waist
- Find your natural waist, the narrowest point above your belly button.
- Wrap the tape around without pulling it tight.
- Breathe out normally before reading the measurement.
Hip
- Stand with feet together.
- Measure around the fullest part of your hips and bottom.
- Keep the tape parallel to the floor.
Height (optional)
- Stand barefoot against a wall.
- Mark the top of your head and measure to the floor.
- Used only to fine-tune length-sensitive styles like maxi dresses.
Tip: Measure twice and use the average if the numbers differ. The tape should sit snugly against your body without compressing your skin.
Dress size charts
This size chart calculator and size guide reference the same measurement bands used to power your result above. Individual brands may vary by an inch or more, so treat this as a starting point rather than a guarantee.
| US | UK | EU | AU | Intl | Bust (in) | Waist (in) | Hip (in) |
|---|---|---|---|---|---|---|---|
| 0 | 4 | 32 | 4 | XXS | 32.5 | 24 | 35 |
| 2 | 6 | 34 | 6 | XS | 33.5 | 25 | 36 |
| 4 | 8 | 36 | 8 | XS | 34.5 | 26 | 37 |
| 6 | 10 | 38 | 10 | S | 35.5 | 27 | 38 |
| 8 | 12 | 40 | 12 | S | 36.5 | 28 | 39 |
| 10 | 14 | 42 | 14 | M | 37.5 | 29.5 | 40.5 |
| 12 | 16 | 44 | 16 | M | 39 | 31 | 42 |
| 14 | 18 | 46 | 18 | L | 40.5 | 32.5 | 43.5 |
| 16 | 20 | 48 | 20 | L | 42 | 34 | 45 |
| 18 | 22 | 50 | 22 | XL | 44 | 36 | 47 |
| 20 | 24 | 52 | 24 | XL | 46 | 38 | 49 |
| 22 | 26 | 54 | 26 | XXL | 48 | 40 | 51 |
| 24 | 28 | 56 | 28 | XXL | 50 | 42 | 53 |
To convert to centimeters, multiply inches by 2.54. UK and AU sizes are approximated as US + 4; EU sizes as US + 32, common industry offsets.
Worked example: what dress size am I?
Here's the calculator in action. Say Maya measures her bust, waist and hip and gets:
- Bust: 37 in (94 cm)
- Waist: 29.5 in (75 cm)
- Hip: 40.5 in (103 cm)
Entering those three numbers with a "Regular" fit preference instantly returns:
US
10
UK
14
EU
42
AU
14
International
M
Because her bust, waist and hip are closely proportioned, the calculator also flags her estimated body shape as Rectangle. Try it with your own measurements.
If Maya also selects Zara and H&M from the brand dropdown, both known to run a little small, the calculator nudges her result up one size for those brands specifically:
Zara
runs small
US 12 · UK 16 · EU 44 · AU 16 · Intl M
H&M
runs small
US 12 · UK 16 · EU 44 · AU 16 · Intl M
Same measurements, brand-aware recommendation, so she can size up with confidence before she checks out.
Did you know? Surveys of U.S. clothing sizes over the past two decades have repeatedly found that the most commonly worn women's dress size sits in the US 16–18 range, larger than the size 8–10 many charts still treat as "standard." It's a good reminder that there's no single "average" body, and that measuring yourself directly beats guessing from a label.
A note on accuracy
Dress sizing is not standardized, every brand cuts differently, a practice often called vanity sizing. This calculator maps your measurements to widely used size-chart averages to give you a confident starting point, not a guarantee. When in doubt, check the specific retailer's own size chart, and read our FAQ on vanity sizing.
Size chart last reviewed September 2026.
The dress size calculator built for real bodies
"What is my dress size?" and "what size dress am I?" are two of the most common questions shoppers type into Google before buying a dress online, and "what dress size am I?" isn't far behind. A dress size calculator (sometimes called a clothing size calculator) answers all three by turning a few body measurements into a size you can actually trust. Instead of scrolling through endless size guides or ordering three sizes "just in case," you enter your bust, waist and hip measurements once and get a clear answer, in US, UK, EU, AU and international sizing , in a matter of seconds. That's the entire idea behind this tool: one free calculator that replaces a dozen browser tabs. It also goes a step further than a plain size chart: pick from 100+ clothing brands like Zara, H&M, Uniqlo and Mango, and see how your calculated size shifts for brands known to run small or large, right alongside your standard result.
A US dress size calculator you can rely on
Most shoppers searching for a US dress size calculator are trying to solve the same problem: US sizing doesn't map cleanly onto UK, EU or Australian sizes, and every retailer seems to size slightly differently. This dress size calculator US shoppers can use converts your measurements against standard industry size charts and instantly shows the equivalent size across every major region, so you're not stuck doing manual conversions before you check out.
Dress size calculator by height and weight, and why measurements matter more
Many people search for a dress size calculator height weight tool, expecting height and weight alone to predict dress size. In practice, two women with the same height and weight can wear very different sizes because dress fit depends on body shape , how your bust, waist and hip measurements relate to each other , not just overall body mass. That's why this calculator asks for bust, waist and hip directly (with height as an optional input for length-sensitive styles), giving you a far more accurate result than a height-and-weight estimate ever could.
A UK dress size calculator built into every result
Searches for a UK dress size calculator or a plain size calculator UK usually come down to one problem: US and UK clothing sizes are rarely the same number, and most tools only cover one country. This calculator solves that by returning your UK size automatically alongside US, EU, AU and international sizing, so a clothing size calculator UK shoppers already have bookmarked would give, in one step, no separate conversion chart required.
Finding your wedding dress size
A wedding dress size calculator needs to be more precise than a regular sizing tool, since bridal sizing often runs smaller than standard ready-to-wear and alterations can be costly. Use this calculator to get a realistic starting size before your first fitting or before ordering a sample size online , then bring the result to your tailor or bridal consultant as a reference point, alongside the boutique's own size chart.
A weight loss dress size calculator that keeps up with you
If your body is changing, a static size chart quickly goes out of date. As a weight loss dress size calculator, this tool is built to be re-used, measure yourself every few weeks, re-run the calculator, and instantly see how your size shifts across every region. Because your results can be saved as a shareable link, you can track your progress without creating an account or storing any personal data on a server.
A women's dress size calculator for every body shape
This women's clothing size calculator goes beyond a single number. Alongside your size in five sizing systems, it works as a body shape calculator, estimating whether you're an hourglass, pear, rectangle, apple, or inverted triangle, from the same three measurements, and lets you fine-tune the recommendation with a fitted, regular, or relaxed fit preference. The result: a dress size calculator that's fast enough for a quick check before checkout, and detailed enough to actually improve how your clothes fit.
Frequently asked questions
How accurate is this dress size calculator? +
It matches your bust, waist and hip measurements against averaged industry size charts. It's a strong starting estimate, but individual brands can run up to a full size larger or smaller.
What is vanity sizing and why do sizes vary between brands? +
Vanity sizing is the practice of labeling clothing with a smaller size number than its actual measurements to make shoppers feel good about the purchase. Because there's no legal standard for clothing sizes, a size 8 at one brand can measure the same as a size 12 at another. Always check a specific brand's own size chart when it's available.
Which measurement matters most for dress size? +
Bust is the primary reference point, but waist and hip matter just as much for fitted styles. Adding all three measurements gives the calculator a much more accurate match than bust alone.
What if I'm between two sizes? +
Choose 'Fitted' in the fit preference selector to size down, or 'Relaxed' to size up. As a general rule, size up if the dress has little stretch or you prefer more room to move.
How can I reduce the chance of returning a dress? +
Measure yourself right before shopping (bodies change slightly over time), check the retailer's specific size chart against ours, and read reviews mentioning fit. Combining our estimate with the brand's own chart is the most reliable approach.
Do you store my measurements? +
No. All calculations happen locally in your browser using JavaScript, nothing is transmitted to or stored on a server.
More dress size questions people ask
What size wedding dress am I? +
Enter your bust, waist and hip measurements into the calculator above to get a starting size. Bridal sizing usually runs smaller than everyday ready-to-wear, so many brides order one size up from their usual dress size and plan for alterations at the fitting.
What's my dress size? +
Measure your bust, waist and hip with a soft tape measure, then enter the numbers into the calculator above. It instantly matches them to the closest US, UK, EU, AU and international size.
What size dress should I buy? +
Use the calculator at the top of this page: enter your measurements in inches or centimeters, choose a fit preference, and select 'Calculate my size' to see your size across every major sizing system at once.
What size prom dress am I? +
Prom dresses are typically cut like standard fitted eveningwear, so your usual dress size is a reliable starting point. Enter your bust, waist and hip measurements above, and choose 'Fitted' if the style has little stretch.
What is my dress size in the US? +
The calculator above shows your US dress size alongside UK, EU, AU and international equivalents in one result, so you don't need a separate US-only sizing tool.
What dress shirt size am I? +
Dress shirt sizing uses neck and sleeve-length measurements rather than bust, waist and hip, so it isn't calculated by this dress size tool. As a general guide, measure around the base of your neck for collar size and from center-back neck to wrist for sleeve length, then compare both to the retailer's shirt size chart.
What's my size? +
Enter your bust, waist and hip measurements into the calculator above and select 'Calculate my size'. It matches those numbers against standard size charts and returns your US, UK, EU, AU and international size at once, so you don't need to search separately for a US or UK size calculator.
How do I calculate my dress size? +
Measure your bust at its fullest point, your natural waist, and the fullest part of your hips with a soft tape measure. Enter those three numbers into the calculator above, in inches or centimeters, and it matches them to the closest size on the chart for you, no manual math needed.
What size am I based on my height and weight? +
Height and weight alone don't determine dress size, two people with identical height and weight can wear different sizes depending on how their bust, waist and hip measurements relate to each other. For an accurate result, use the calculator above with your actual bust, waist and hip measurements rather than height and weight.
What are the measurements for a US size 12? +
A US size 12 typically corresponds to roughly a 39 inch bust, 31 inch waist, and 42 inch hip, which is a UK/AU size 16, EU size 44, and international size M. Enter your own measurements in the calculator above to see exactly where you fall.
How does the body shape calculator work? +
Using the same bust, waist and hip measurements you enter for your dress size, the calculator compares the difference between each measurement to estimate whether your shape is closest to hourglass, pear, rectangle, apple, or inverted triangle. It's an estimate based on proportion, not a precise classification.
Is there a dress length calculator by height? +
This tool focuses on dress size (bust, waist and hip), not dress length. As a general guide, mini dresses typically end above the knee, midi dresses fall between the knee and calf, and maxi dresses reach the ankle, so choose length based on your height and the silhouette you prefer, then check the retailer's specific length measurements.