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Clothing Size Converter

Convert clothing sizes between US, UK, EU, IT, FR, AU, and alpha sizing.

Category

Region

USUKEUITFRAUAlpha
043236324XXS
263438346XS
483640368XS
61038423810S
81240444012M
101442464214M
121644484416L
141846504618L
162048524820XL
182250545022XXL

These are standard size chart equivalents. Real fit varies by brand and cut, so treat this as a starting point and check a brand’s own size guide when it is available.

How to convert clothing sizes between regions

  1. Pick a category

    Choose women's tops and dresses, men's tops, or men's trousers, since each uses its own size scale.

  2. Pick a region and size

    Select the region you already have a size in, then choose that size from the list.

  3. Read the matching row

    The full reference table highlights the equivalent size in every other region at once.

Why use this tool

Three clothing categories

Women's tops and dresses, men's tops, and men's trousers each use their own standard size table.

Seven regions at once

US, UK, EU, IT, FR, AU, and alpha sizing all appear together in a single reference table.

Highlighted match

Picking a region and size highlights the equivalent row across every other region, so nothing needs to be looked up separately.

Copy every equivalent

One button copies the full row of matching sizes across all seven regions as plain text.

Honest about brand variance

The table shows standard chart equivalents and says so plainly, since real fit still varies by brand and cut.

About this tool

Clothing sizes are not standardized globally, so a size that fits in one country can map to a different number, or a different letter, elsewhere. This tool lays out the standard equivalents across US, UK, EU, IT, FR, and AU sizing, plus the alpha scale from XXS to XXL, for three common categories: women’s tops and dresses, men’s tops, and men’s trousers measured by waist.

Pick the category that matches what is being shopped for, then choose the region and size already known, whether that is a US dress size, a UK shirt collar equivalent, or a European trouser waist. The reference table below updates to highlight that size’s row, so every other region’s equivalent is visible at a glance instead of needing a separate lookup for each one.

These tables reflect standard chart conventions used across the industry, not any single brand’s exact cut. Real sizing varies enough between brands, and even between styles from the same brand, that the safest use of this tool is as a starting point for which size to try first, backed up by a brand’s own size guide when one is available. For the body measurements a size is based on, see the unit converter or length converter, and for footwear, shoe size converter covers the same idea for shoes.

Frequently asked questions

Why do clothing sizes differ between countries?
Each region historically built its own sizing standard around local body measurement averages, and no single global standard ever replaced them, so the same body measurement maps to a different number or letter depending on where the garment was designed.
Which categories does this cover?
Women's tops and dresses, men's tops, and men's trousers measured by waist. Each uses its own size progression, so switching categories changes the whole table, not just one column.
Are these sizes exact for every brand?
No. These are standard chart equivalents used as an industry reference point. Real garments vary by brand, cut, and fabric, so treat the result as a starting size to try rather than a guarantee of fit.
What does alpha sizing mean?
Alpha sizing is the letter scale from XXS through XXL used on tags instead of a number. Because it groups a range of numeric sizes into one letter, more than one numeric size can map to the same alpha size.
Is my selection uploaded anywhere?
No. Everything runs in your browser, and nothing is sent to a server or stored.

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