Dress Size Converter

A US 8 isn’t a UK 8 — and even within one country, sizing shifts by brand. Convert by the size label you already know, or for a more reliable result, enter your bust, waist, and hip measurements directly. Either way, you’ll get your equivalent size across US, UK, EU, Italian, Australian, and Japanese sizing.

Sizing system
Your size
Bust
Waist
Hip
YOUR SIZE, CONVERTED

These are standard baseline conversions, not brand-specific. A Zara EU 38 and an H&M EU 38 can fit differently — always check the retailer's own size chart when possible, and size up if you're near the top of a range or the fabric has little stretch.
Sizes Don't Line Up
The Reason

Why Sizes Don't Line Up Between Countries

Every country developed its clothing size labels independently, with no shared standard behind the numbers. A "size" is just a label a country's fashion industry settled on — it doesn't correspond to a fixed body measurement the way a centimeter does.

Size Labels

Fast to convert, but only as reliable as the standard chart behind them — and real brands often size differently from the baseline through "vanity sizing" or their own fit models.

Body Measurements

Bust, waist, and hip measurements don't change based on which country's label you're reading, which is why they're the more dependable anchor when a size label alone isn't enough.

Why It Matters

Why This Tool Matters

Sizing mistakes are one of the most common — and most avoidable — reasons for returns when shopping from an international retailer. A quick, wrong guess based on a familiar-sounding number costs more time than getting it right the first time.

Common mistakes this tool helps you avoid

  • Assuming a size label means the same thing in every country because the numbers "feel" similar
  • Trusting a single measurement (like just bust, or just waist) when a different one is actually the controlling factor
  • Not accounting for vanity sizing differences between brands even within the same country

Who benefits most

Anyone shopping from an international retailer, buying a gift in a size system they don't normally use, or converting an old label from a vintage or secondhand piece.

A Note on Accuracy

Every conversion here is a standard industry baseline, not a brand-specific match. If a retailer publishes its own size chart, always defer to that over a general conversion — it will be more accurate for that specific garment.

FAQ

Common Questions

No — this is one of the most common sizing mix-ups. A US 8 is typically closer to a UK 12. US and UK labels run on completely different numbering systems, even though the numbers look similar.

EU sizing starts numbering around 32 for the smallest size, roughly 32 numbers higher than the equivalent US size — it's not a reflection of a larger fit, just a different counting system entirely.

No, and this trips people up often. Italian sizing typically runs a few numbers higher than general EU sizing for the same actual fit — an EU 38 is commonly closer to an Italian 42.

Measurements are more reliable whenever you have them available. A size label conversion is a fast estimate, but your actual bust, waist, and hip measurements don't change depending on which country's chart you're reading.

This is common, since few bodies fit a single size chart perfectly. As a general rule, go with the larger size — it's generally easier to have a garment taken in than to deal with something too tight.

It's when a brand labels a garment with a smaller size number than a standard chart would suggest, often for marketing reasons. It's a big part of why the same size label can fit differently between two brands in the same country.

This chart is built specifically around dress and general ready-to-wear sizing. Tops and bottoms can follow slightly different measurement logic, especially for pants sized by waist and inseam rather than a single number.

Australian sizing generally aligns closely with UK sizing for women's ready-to-wear, using the same numbering in most standard charts.

Japanese sizing uses odd numbers rather than even ones for women's clothing, and the fit blocks it's based on can run narrower than Western equivalents — worth sizing up if you're between sizes when shopping Japanese brands.

Not reliably — vintage sizing standards were often smaller across the board than modern sizing for the same label, sometimes by several sizes. For vintage pieces, actual garment measurements are far more trustworthy than the size tag.

This is normal and comes down to each brand's own fit model, cut, and amount of vanity sizing. A standard conversion chart like this one gives you a starting point, but always check a specific retailer's own chart when it's available.

No. It's meant to get you close enough to shop online confidently, especially across borders — but nothing replaces trying a garment on when that option is available.

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