US
10
Free · No sign-up · US / UK / EU / AU
Find your dress size
in seconds
Enter three measurements and get your dress size in US, UK, European and Australian sizing — based on published size charts, not guesswork.
Dress Size Calculator
in
Fullest part, tape level
in
Natural waistline
in
Fullest part of hips
Your dress size
UK
14
EU
42
AU
14
Letter
M
Published chartssourced & cited
4 size systemsUS · UK · EU · AU
Honest by designbrand variance disclosed
What dress size am I?
Three measurements, thirty seconds
All you need is a soft tape measure. Stand relaxed, keep the tape snug — not tight — and measure over light clothing.
No. 1
Bust
Around the fullest part of your chest, under your arms and across your shoulder blades. Keep the tape level all the way round.
No. 2
Waist
Around your natural waistline — the narrowest point, usually just above the belly button. Don't hold your breath.
No. 3
Hips
Around the fullest part of your hips and seat, feet together. This decides the fit on shift and fitted styles.
Worked examples
See it in action
Real measurement sets, run through the same chart the calculator uses — including the awkward cases where the three numbers disagree.
Example 1
When everything agrees
Bust 34.5″ · Waist 26.5″ · Hips 37.5″. All three land on the same row of the chart — the easy case, and the most common one.
Result: US 4 · UK 8 · EU 36 · S
Example 2
Between sizes
Bust 37″ · Waist 31″ · Hips 42″. The bust points to a 10, but waist and hips both reach the 12 — so the 12 governs for anything fitted.
Result: US 12 · UK 16 · EU 44 · L
Example 3
At the plus boundary
Bust 44″ · Waist 36″ · Hips 47″. All three agree on an 18 — where misses sizing ends and the plus cut (18W) begins: same body, different pattern.
Result: US 18 / 18W · UK 22 · EU 50
The method
How the calculator decides
No black box. This is the exact logic behind every result on this page — the same rules a good fitter applies.
1
Match each measurement
Bust, waist and hips are each matched to the chart on their own. Nothing is averaged.
2
Between sizes? Round up
A measurement that falls between two rows takes the larger size. A dress can be taken in — it can't be let out past its seams.
3
The largest governs
Your result is the biggest of the three sizes — then the style check below adjusts it. The others are flagged, never hidden.
4
Convert & label
The US size is converted to UK, EU and AU and given its letter size, so you can shop any chart with confidence.
Watch it work
One calculation, start to finish
Here is the example at the top of this page — bust 38″, waist 30″, hips 40″ — traced through the chart exactly as the calculator does it. Each chart row covers a range of measurements; your number is matched to the first row that contains it.
| Measurement | Entered | Chart row it lands in | Size it points to |
|---|---|---|---|
| Bust | 38″ | Up to 38″ | US 10 |
| Waist | 30″ | Up to 30″ | US 10 |
| Hips | 40″ | Up to 41″ | US 10 |
All three agree, so the governing size is US 10. When they don't agree — say the waist lands on the 12 row while the bust lands on the 10 — the larger size governs for fitted styles, and the result tells you which measurement made the call. Then the conversions are simple arithmetic on the US size: UK = US + 4 → 14 · EU = US + 32 → 42 · AU = the UK number → 14, and the chart supplies the letter size, M.
Ranges, not points
A dress size isn't a single measurement — it's a band. The chart's job is to find the band each of your measurements falls into. Sit near the very top of a band and the calculator will say so, because that's exactly when fabric and cut start to matter more than the number.
What it can't know
Three honest limits: it can't feel fabric (a stretch knit forgives a size; a lined satin forgives nothing), it can't know a brand's private ease allowance, and it can't know how you like a dress to fit. That's why the result is a starting size with the reasoning shown — not a verdict.
Fit by style
Which measurement runs the dress?
The governing size depends on the cut. Find your style, and you know which of your three numbers to obey.
| Dress style | Fitted at | Governing measurement | Between sizes? |
|---|---|---|---|
| Fitted / sheath | Bust, waist & hips | Your largest | Size up; tailor the rest in |
| Fit-and-flare | Bust & waist | Waist | Hips are free in the skirt — ignore them |
| A-line / shift | Shoulders & bust | Bust | The forgiving cut — either size works |
| Wrap | Bust & waist (tie) | Waist | Take the smaller — the tie adjusts |
| Empire | Just under the bust | Bust | Waist & hips don't decide |
| Column / slip | Hips | Hips | Almost no ease — never size down |
Full dress size chart
The complete standard chart
US sizes 00–20 with UK, EU and letter equivalents. The highlighted row is the result of the example above.
| US | UK | EU | Bust (in) | Waist (in) | Hips (in) | Letter |
|---|---|---|---|---|---|---|
| 00 | 2 | 30 | 31 | 23 | 34 | XXS |
| 0 | 4 | 32 | 32.5 | 24.5 | 35.5 | XS |
| 2 | 6 | 34 | 33.5 | 25.5 | 36.5 | XS |
| 4 | 8 | 36 | 34.5 | 26.5 | 37.5 | S |
| 6 | 10 | 38 | 35.5 | 27.5 | 38.5 | S |
| 8 | 12 | 40 | 36.5 | 28.5 | 39.5 | M |
| 10 | 14 | 42 | 38 | 30 | 41 | M |
| 12 | 16 | 44 | 39.5 | 31.5 | 42.5 | L |
| 14 | 18 | 46 | 41 | 33 | 44 | L |
| 16 | 20 | 48 | 43 | 35 | 46 | XL |
| 18 | 22 | 50 | 45 | 37.5 | 48 | XL |
| 20 | 24 | 52 | 47 | 40 | 50 | XXL |
Real bodies
When your measurements disagree
Almost nobody is one size all over. The two most common patterns — and what to actually order.
Hips two sizes above bust
Example: bust says 8, hips say 12.
Size to the hips for fitted, sheath and column styles — a dress that's right at the hip can have its waist and bodice taken in cheaply; the reverse is impossible. For A-line and fit-and-flare, order your bust size and let the skirt fall free.
Bust two sizes above hips
Example: bust says 14, hips say 10.
Size to the bust in anything with a fitted bodice — gaping armholes and pulling buttons can't be altered away. Empire and wrap styles are your friends here: they fit the bust and forgive everything below it. Avoid sizing down for the hips in structured fabrics.
Size systems explained
US, UK, EU & AU — the honest version
+4
UK = US + 4
A US 10 is a UK 14. The most-used rule in dress shopping — and the one that trips up the most orders.
+32
EU = US + 32
A US 10 is an EU 42 at most continental brands. Italian labels often run one size smaller again.
= UK
AU follows UK
Australian dress sizes match UK numbers — an AU 14 is a US 10. The chart above converts all four.
1960s ≠ now
Vanity sizing is real
Sizes have drifted for decades: a 1960s size 12 is roughly today's size 6. Vintage dress? Trust the tape, never the label.
UK 14 = US 10
EU 42 = US 10
US 10 = Letter M
AU 14 = US 10
Every dress tool
One job, done properly
Estimator
By Height & Weight
No tape measure? Estimate your size from height and weight, then refine it later.
Estimate my size →
Converter
Size Converter
Convert any dress size between US, UK, EU, AU and Canadian sizing instantly.
Convert a size →
Occasion
Wedding Dress Size
Bridal sizes run about two sizes small. See your bridal size before you book the fitting.
Find my bridal size →
Occasion
Prom Dress Size
Junior and formal sizing explained, with measurement tips for a first formal dress.
Find my prom size →
Plus
Plus Size Calculator
Sizes 14W–32W from your measurements, with the plus chart and fit notes that matter.
Calculate plus size →
Kids
Kids Dress Size
Children's dress sizes by age, height and weight — for girls and toddlers.
Find a child's size →
Weight loss
Weight Loss & Sizes
How many dress sizes will you drop? An honest estimate for your goal weight.
Estimate my future size →
Reference
Full Size Chart
Every size in US, UK, EU and AU — with cm, plus and petite tables included.
See the full chart →
Straight talk
Why your size changes from brand to brand
There is no legal standard
Dress sizes aren't regulated. Every brand drafts to its own chart, so treat any result — including ours — as your starting size, not a promise.
Bridal runs small
Wedding dresses are typically cut one to two sizes above your everyday size. A bridal 14 is a street 10 — it's the label, not you.
Fit beats the number
Between sizes? The deciding measurement is the one the style is fitted at — waist for fitted dresses, hips for shift and A-line cuts.
Questions
Before you ask
What if I'm between two sizes?
For fitted and non-stretch styles, take the larger size — a dress can be taken in at a seam, but it can't be let out beyond its seam allowance. For knit, wrap and A-line styles, the smaller size usually works because the cut or the fabric forgives. The calculator rounds up by default and tells you when a measurement sits near the top of its band.
Is a UK 14 the same as a US 14?
No. UK dress sizes run four numbers above US sizes, so a UK 14 is a US 10. Ordering a UK 14 expecting a US 14 gets you a dress two sizes too big. The calculator shows both side by side so you never have to do the offset in your head.
How do I measure without a soft tape?
Use a belt, a length of string or a phone charging cable: wrap it around, mark where it meets, then lay it flat against a ruler or a hard tape measure. It is slightly less precise than a soft tape, so if a measurement lands right at a size boundary, treat the larger size as your starting point.
Why is my wedding dress size bigger than my normal size?
Bridal sizing never followed the vanity-sizing drift of everyday clothing, and bridal patterns are cut with less ease. The result: most women wear a bridal size one to two numbers above their street size. It is the label that changed, not your body. Our wedding dress calculator converts for you.
What letter size (S/M/L) is a US dress size?
Roughly: US 00–0 is XXS/XS, 2 is XS, 4–6 is S, 8–10 is M, 12–14 is L, 16–18 is XL and 20 is XXL. Letter sizes vary even more between brands than numbered ones, so treat them as a shortcut, not a measurement — the full chart above shows the letter for every numbered size.
Juniors vs misses sizes — what's the difference?
Juniors sizes are the odd numbers (1, 3, 5, 7…) cut for a younger, straighter figure with a higher waistline and less room in the bust and hips. Misses sizes are the even numbers (2, 4, 6, 8…) used by this calculator, cut for an adult figure. A juniors 9 is not a misses 8 or 10 — the proportions differ, not just the number.
My hips are two sizes bigger than my bust — what do I order?
Order for the hips in fitted, sheath and column styles, and have the waist and bodice taken in — that is a cheap, standard alteration. In A-line and fit-and-flare styles, order for the bust instead and let the skirt fall free over the hips. The style table above shows which measurement governs each cut.
Do dress sizes really differ between brands?
Yes — there is no law or enforced standard behind dress sizes, so every brand drafts to its own chart and its own idea of its customer. Two dresses both labelled 10 can differ by an inch or more at the waist. That is why this calculator publishes its chart and method: use the result as your starting size, then check the retailer's own chart before ordering.
Who made this · How it's sourced
Built by a person, checked against sources
IW
Ian Welkins
Builder & maintainer
I build small, single-purpose calculators and check every number they print. This one exists because dress sizing is a mess of unregulated charts — the least I could do was gather the published ones in one place and show the working.
Found a chart that disagrees with ours? That's exactly what the report-an-error page is for — corrections get checked and the page gets updated.
Last verified: November 2026 · Charts re-checked against the sources listed here
Methods & sources
- ASTM D5585Standard tables of body measurements for adult female misses figure type
- ISO 8559Size designation of clothes — anthropometric survey definitions
- Published brand charts (consensus)Cross-checked across major retailers' published size charts; where brands disagree, the median value is used and the variance disclosed
Method in one line: match each measurement to the consensus chart, round up between sizes, let the largest measurement govern — then adjust for the style of dress.