The jacket said 50. Your chest says 38.
The German website had exactly the jacket you wanted, in exactly the color that sold out everywhere else, in exactly one remaining size: 50. You do not own anything labeled 50. You own 38s, mostly, with one rebellious 40 that fits better than all of them. So you did what everyone does — you opened a search tab, typed 'EU 50 to US,' and got three different answers from three confident websites.
Clothing size conversion is a solved problem wearing a disguise. Underneath the label chaos sits a small set of real anchor tables — women's dresses step predictably between US, UK, and EU; men's suits add ten crossing the Atlantic; shoes follow two different offsets depending on whose feet; kids' sizes in Europe are simply height in centimeters. The disguise is the labels themselves, which brands bend, inflate, and occasionally invent.
The Clothing Size Converter works from the anchors. It converts between US, UK, EU, and international labels for men's, women's, and kids' apparel and footwear — and, more usefully, in reverse: enter your actual chest, waist, hip, or foot measurements and it tells you the size to shop per region. Labels lie with a straight face. Tapes don't.
Everything the converter covers
The tool splits clothing into the four categories that actually follow different rulebooks, because a single 'universal converter' that ignores the boundaries between them is where most size charts go wrong:
- Women's dresses, tops, and bottoms across US, UK, EU, and international labels, with the bust-waist-hip measurement anchors behind each row.
- Men's suits, jackets, shirts, and trousers — chest-inch labels for US/UK, the +10 EU convention, plus alpha sizes (S/M/L) with their chest anchors.
- Footwear for men, women, and kids in US, UK, EU, and also the honest systems: Japanese centimeters and Korean millimeters.
- Kids' clothing via height-in-centimeters, the EU way, mapped to US age-based sizes — the only kids' system that survives contact with actual children, who grow on their own schedule.
- Cross-category moves: men's-to-women's shoe offsets, waist-to-EU trousers, and the alpha-to-numeric ladder both directions.
Converting one size in four moves
Pick the category
Women's, men's, shoes, or kids' — the four rulebooks are different enough that the converter keeps them separate rather than pretending one table rules them all.
Enter a size or a measurement
Type the label you know (a size, an alpha, a W/L pair) or your body measurement — chest, waist, hip, or foot length — and the tool solves either direction.
Read the full row
You get US, UK, EU, and international equivalents together with the measurement anchor that underlies them, so you can sanity-check rather than trust blindly.
Cross-check against the retailer's chart
Before ordering, glance at the specific brand's own size chart — the converter gives you the region's convention; the brand's chart gives you that garment's reality. Two seconds, dramatically fewer returns.
Note your anchors once
Write your chest, waist, hip, and foot length on a note in your phone. Future conversions then take ten seconds forever, regardless of which country's site you're standing in.
Where the numbers come from
Three sizing philosophies coexist on today's labels, and understanding them in one minute makes every chart you ever meet legible. The oldest is nominal labeling — arbitrary small numbers that started as bespoke tailoring codes and became mass-market labels; US and UK women's sizes descend from 1940s catalog standardization that was re-scaled more than once. The second is measurement labeling, where the size states a body dimension: men's suit chests in inches, EU kids' heights in centimeters, Japanese and Korean shoe sizes as foot length. The third and newest is the EN 13402 European standard, which prints actual body dimensions — chest girth, waist girth — on the label and quietly retires the guessing altogether.
The converter is built on the meeting points of those systems. Women's labels follow the standard international chart anchored at US 4 = UK 8 = EU 36. Men's suits follow the +10 convention between inch labels and EU. Shoes follow the gender-dependent US-UK offsets and the separate EU scale. And every row carries the measurement anchor so you can see the physical truth under the label dialect.
| System | Sizes in | Best example | Honesty level |
|---|---|---|---|
| US nominal | 2, 4, 6… | Women's dresses | Drifts — vanity sizing is real |
| UK nominal | 6, 8, 10… | Women's dresses | Drifts less, still nominal |
| EU women's | 34, 36, 38… | Women's dresses | Nominal with tighter conventions |
| Measurement labels | Inches or cm of body | Men's chests, kids' heights, JP/KR shoes | Cannot lie by construction |
| EN 13402 | Body girth in cm | Growing share of EU labels | The endgame — dimensions on the tag |
The anchor tables, condensed
These are the reference rows the converter computes from — printed here because you should be able to audit your tools, and because a chart you can read on a phone in a store aisle is worth two you can't.
| US women's | UK | EU | Bust anchor (in) |
|---|---|---|---|
| 2 | 6 | 32 | 31–32 |
| 4 | 8 | 36 | 32–33 |
| 6 | 10 | 38 | 33–34 |
| 8 | 12 | 40 | 34–35 |
| 10 | 14 | 42 | 35–36 |
| 12 | 16 | 44 | 36–37 |
| US/UK men's jacket | EU | Chest anchor (in) |
|---|---|---|
| 36 | 46 | 36 |
| 38 | 48 | 38 |
| 40 | 50 | 40 |
| 42 | 52 | 42 |
| 44 | 54 | 44 |
| US women's | UK | EU | JP (cm) |
|---|---|---|---|
| 7 | 5 | 37.5 | 23.5 |
| 8 | 6 | 39 | 24.5 |
| 9 | 7 | 40 | 25.5 |
| 10 | 8 | 41 | 26 |
| US men's | UK | EU | JP (cm) |
|---|---|---|---|
| 8 | 7 | 41 | 26 |
| 9 | 8 | 42.5 | 27 |
| 10 | 9 | 44 | 28 |
| 11 | 10 | 45 | 29 |
The rest of the anchors: waist, hip, neck, and sleeve
The condensed tables above anchor dresses by bust and suits by chest, but a tape measure gives you five numbers, and each governs a different rack. Here is the remainder of the anchor set — the measurements the labels are secretly quoting.
| US women's | Waist anchor (in) | Hip anchor (in) |
|---|---|---|
| 2 | 23–24 | 32–33 |
| 4 | 24–25 | 34–35 |
| 6 | 25–26 | 35–36 |
| 8 | 26–27 | 36–37 |
| 10 | 27–28 | 37–38 |
| 12 | 28–29 | 38–39 |
Men's garments quote a different body entirely. Dress shirts label the neck, casual tops quote the chest as an alpha ladder, and trousers are the one corner of menswear where the label is already an honest measurement: W and L are waist and inseam in actual inches, while the EU equivalent adds sixteen — a W 32 becomes an EU 48, a W 34 an EU 50.
| Men's garment | Labels | Measurement anchor | Working rule |
|---|---|---|---|
| Dress shirts | Neck 15–16.5 × sleeve 32–36 | Neck girth where the collar sits | Round half sizes up — a tight collar never relaxes into fitting |
| Casual tops | S / M / L / XL | Chest 35–37, 38–40, 41–43, 44–46 in | Same ladder everywhere; the fit name moves the ease |
| Trousers, US/UK | W 28–40 × L 28–36 | Waist where the trouser rides, inseam to the hem | Both numbers are inches — the most honest label in menswear |
| Trousers, EU | 40–58 | Same waist via +16 | W 32 = EU 48; W 34 = EU 50; offset holds through the range |
Input
Ten minutes with a tape: chest 38.5 in · waist 31 in · hip 38 in · neck 15.5 in · foot 27 cm
Output
Jackets: US/UK 38R, EU 48 — or 40R when layering under · Dress shirts: 15.5 × 32/33 · Casual tops: M on the 38–40 chest anchor · Trousers: W 31, EU 47 — buy 48 · Shoes: EU 42.5, US men's 9, UK 8, JP 27 · Five numbers in a note, every rack in every country decoded from now on
That example is the entire method in one screen: measure the body once, look up the row, and every future label question becomes a table lookup instead of a research project. The anchors also explain the returns you stop making — a W 31 shopper buying W 32 trousers off a converted EU 48 label was never the brand's fault; the chart was fine, and the anchor was never consulted.
One order, four systems, zero returns
Input
EU 50 jacket, from a Berlin shop · US women's 8 shopper needs shoes and a dress from the same order · and a kids' size 122 for the nephew
Output
EU 50 jacket = US/UK 40R — fits a 40-inch chest, and the retailer's chart confirms 40 in is their 50 · US women's 8 dress = UK 12 = EU 40 · US women's 8 shoe = UK 6 = EU 39 = JP 24.5 cm · Kids' EU 122 = child ~122 cm tall, about age 6-7, US kids' 6-7 in most brands
That example hides the tool's most valuable trick: the shoe conversion ran through the JP column. When a European shop lists shoes in EU sizes and you know your foot is 24.5 centimeters, you convert through the one unit in the whole system that's a physical fact rather than a label convention. Foot length in centimeters maps to every other shoe system with less drift than any label-to-label route. It's the same philosophy as converting currency through gold — pick the asset nobody can print.
For the kitchen-table version of this habit: body measurements are worth converting once and keeping. A KG to LBS Converter settles the scale's dialect, the clothing converter settles the wardrobe's, and after that every international checkout page is just four numbers you already know.
Crossing between men's and women's
The men's-to-women's conversion is a longtail question with a genuinely asymmetric answer, and it deserves the honest version. For shoes, there is a working rule: subtract about 1.5 from a US women's size to get the US men's equivalent, so a women's 9.5 is a men's 8. It works because the underlying foot-length scale is shared, and only the label numbering diverges.
For garments, no such rule exists, and every chart claiming one is selling you a rounding error. Men's and women's patterns differ in cut geometry — shoulder slope, chest-to-hip ratio, armhole shape — not just label numbers. A women's XL and a men's S might share a chest number while fitting like garments from different planets, because they are. The correct cross-category move is measurement-first: convert your chest, waist, and hip through the anchors, then buy the cut intended for the body the pattern was drafted for.
| Move | Working method | Confidence |
|---|---|---|
| US women's shoe → US men's | Subtract 1.5 | High — shared foot-length scale |
| US men's shoe → US women's | Add 1.5 | High |
| Alpha sizes across gender | Compare chest/waist anchors, not letters | Medium |
| Women's dress ↔ men's shirt labels | No reliable label conversion exists | None — go by measurements |
| Unisex garments | Buy by men's measurements | High — that's how unisex is drafted |
Where every chart lies to you
A size chart is a theory of a garment. Theories have failure modes, and these are the ones that bite:
- Vanity sizing drift. US nominal labels have inflated over the decades — the measurements attached to a given number have crept larger, because garments that fit flatter sell. Two brands' size 8 can differ by a full chest inch, and both are 'right.'
- Alpha size chaos. S, M, and L are unregulated marketing territory: one brand's M is another's L, and 'slim fit' relabels the whole ladder one step down. Alpha sizes convert to numbers only within a brand.
- Athletic shoe inflation. Sneaker brands notoriously run roomy — a full size or more in some flagship lines — while dress shoes run true or snug. Convert the number, then read the reviews for the model's reputation.
- Kids' age labels. 'Ages 5-6' describes an average child who does not exist; EU height sizing does not have this problem, which is why parents who discover centimeters never go back.
- Vintage and thrift. A 1970s size 12 is not today's size 12 — nominal drift over decades makes vintage labels almost a different currency. Measure the garment flat, and compare chest-to-chest, not number-to-number.
- Sewing patterns. Commercial patterns use body measurements plus 'ease,' so the size to cut is usually not your ready-to-wear label at all — a garment-pattern 12 can correspond to a store size 6. The measurement anchors on the pattern envelope are the truth; the numbers are bookkeeping.
- The retailer's chart outranks everything. Our converter gives the regional convention; the brand's chart gives the garment's reality. When they disagree, trust the garment — brands cut to their own blocks.
Who converts, and why now
- Cross-border online shoppers — the seasonal peak of this tool — decoding EU and UK listings during November and December's compressed decision window.
- Thrifters and vintage resellers, for whom label drift across decades is a daily professional hazard and a flat-lay tape measure is a business expense.
- Parents buying kids' clothes a season ahead, converting height to labels while gambling sensibly on next spring's growth spurt.
- Sewists translating between pattern envelopes and ready-to-wear labels, where the two systems disagree on principle.
- Gift-givers who refuse to guess — a matched gift that fits lands entirely differently, and the converter is the difference between 'thoughtful' and 'nearly right.'
- Travelers and expats, whose wardrobes accumulate in mixed labels until one conversion session untangles the whole closet.
The bra-fitting crowd overlaps heavily, for obvious reasons: undergarment sizing is the least reconciled corner of the whole system, and the Bra Size Calculator extends the same anchor-first method into band and cup arithmetic. Anyone cooking their way through international sizing tends to be baking from European recipes too — the Oven Temperature Converter handles the kitchen's version of the transatlantic unit dispute.
Labels versus measurements versus brand charts
Three conversion strategies exist, ranked here by what they're actually good at:
| Label charts (this tool) | Body measurements | The brand's own chart | |
|---|---|---|---|
| Speed | Ten seconds | Two minutes, once | One minute per order |
| Accuracy | Regional convention, ±1 size | The best available | Definitive for that garment |
| Works across brands | Yes, approximately | Yes, honestly | No — single brand |
| Handles vanity sizing | No — labels drift | Immune by construction | Immune for its own garments |
| Best used | Browsing, comparisons, gift buying | Anything fitted or expensive | The final pre-checkout step |
That stack, in that order, is what eliminates returns. The label tells you which rack you're shopping; the measurement tells you what your body is; the brand's chart tells you what the garment is. Skip the middle step and you're negotiating between two parties who've never met.
Your closet stays your business
Nothing about converting a size 44 requires a server. The anchor tables load with the page, the conversion is arithmetic your browser performs on the spot, and your chest measurement — which you entered, not us — goes nowhere at all. There is no account, no size history, no 'save your fit profile for personalized recommendations,' because a fit profile is a dataset wearing a sweater.
The tool works the same on airplane Wi-Fi at 30,000 feet as it does at home, which is not a boast about performance but a statement about architecture: when all the math is local, there is nothing to intercept and nothing to leak. Your measurements are between you, your tape, and whichever checkout page you choose to share them with.
Size questions that actually come up
What is a EU 40 in US women's sizes?
By the standard conversion chart, EU 40 corresponds to US women's 8 (and UK 12). Charts anchor women's dresses as US 4 = UK 8 = EU 36, adding one US or two UK sizes per EU step. Brand cuts vary, so the retailer's own chart is the final word for any specific garment.
How do I convert men's suit sizes between US and EU?
Men's suit and jacket sizes in the US and UK are labeled in chest inches, while EU sizes add roughly 10 — so a US 40R jacket converts to an EU 50R. The offset holds through the standard range: US 38 = EU 48, US 40 = EU 50, US 42 = EU 52.
Are US and UK shoe sizes the same?
No, and the offset differs by gender, which trips people up constantly. US men's sizes run one size above UK labels (US men's 9 = UK 8), while US women's run about two sizes above UK (US women's 9 = UK 7). EU shoe sizes run on a different numeric scale entirely (US men's 9 ≈ EU 42.5).
How do I convert US women's sizes to men's?
For shoes, subtract about 1.5 sizes from the US women's size to get the US men's equivalent — a women's 9.5 is a men's 8. For clothing, there is no reliable label conversion; convert through body measurements instead, since men's garments are cut to a different chest-to-hip ratio entirely.
What does EU kids' size 116 mean?
It is the child's height in centimeters — the EU system labels children's clothing by stature, so 116 fits a child around 116 cm tall, roughly age five to six. US kids' sizes run by number and approximate age instead, which is why the height-based EU system is easier to shop accurately across brands.
Why do I wear different sizes in different brands?
Because nominal sizes are marketing labels anchored loosely to measurements, and US labels in particular have drifted larger over the decades — a phenomenon known as vanity sizing. Two brands' 'medium' can differ by several centimeters of chest. Measurement-based conversion, and the retailer's own size chart, beat label charts when precision matters.
What is EN 13402?
The European standard for clothing size designation, which replaces traditional labels with actual body measurements in centimeters — chest girth, waist girth, and drop values. It is the most honest sizing system in common use, and the reason more European garments print measurement ranges on their labels.
Does the converter store my measurements or cost anything?
No to both. All conversion runs locally in your browser, there is no account, and the tool is free. Your chest measurement is nobody's business but your tailor's.
Convert the rest of the label confusion
Sizing tools travel in packs. The Bra Size Calculator covers the band-and-cup corner of the wardrobe with sister-size arithmetic; the Oven Temperature Converter settles the other great transatlantic dispute in the kitchen; and the KG to LBS Converter keeps the bathroom scale bilingual. Between them, the only number left unconverted is the one on the price tag — and that one's on you.
Sources and further reading
- EN 13402 European clothing size standard — https://en.wikipedia.org/wiki/EN_13402
- US standard clothing sizes (history and drift) — https://en.wikipedia.org/wiki/US_standard_clothing_size
- Clothing sizes (international overview) — https://en.wikipedia.org/wiki/Clothing_sizes
- Shoe sizes (all systems) — https://en.wikipedia.org/wiki/Shoe_size
We cite primary sources (standards bodies, government agencies, official documentation) wherever they exist so you can verify every number on this page yourself.