Clothing Size Converter
Convert clothing sizes between US, UK, EU, Italian, Japanese, and Australian systems for tops, dresses, and pants.
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What is Clothing Size Converter?
The Clothing Size Converter translates garment sizes between the US, UK, EU, Italian, Japanese, and Australian systems for three garment types: tops (shirts, t-shirts, jackets), dresses, and pants (trousers, jeans). Because clothing sizes are not linearly related, the tool uses lookup tables of commonly published equivalents: your input is snapped to the closest matching row, and every other region plus the international XXS-3XL letter code is read from that same row, keeping all outputs mutually consistent.
Key Benefits
- Shop from any country’s store without decoding foreign size charts yourself
- See the international letter size (XS-XXL) that many global brands print on labels
- Dedicated tables for tops, dresses, and pants reflect how each garment is actually sized
- Handles US inch-waist pants numbers alongside UK/EU/IT/JP/AU numbered sizes
- Instant, private, fully client-side conversion — nothing is uploaded
Common Use Cases
- •Buying clothes from US or EU retailers while shopping from Thailand or Asia
- •Checking whether a Japanese size 11 top matches your usual M before ordering
- •Converting a UK 12 dress size to US, EU, and international letters for cross-brand shopping
- •Decoding a 30-inch US jeans waist into EU/IT numbered sizes
How to Use the Clothing Size Converter
- Choose a Garment Type: Pick tops (shirts, t-shirts, jackets), dresses, or pants (trousers, jeans) — each has its own conversion table.
- Select Your Region: Choose the sizing system you already know: US, UK, EU, IT, JP, or AU.
- Enter Your Size: Type the size from that region, e.g. M, 12, or a 30-inch waist. The converter snaps it to the closest row in the chart.
- Read and Copy Equivalents: The results panel shows the matching size in every other region plus the international letter code. Click "Copy all sizes" to save them.
Key Features
- Three garment tables: tops, dresses, and pants, each with its own regional chart
- Six regional systems (US, UK, EU, IT, JP, AU) plus the international XXS-3XL letter size
- Accepts both letter sizes (M, XL) and numeric sizes (12, 30) with nearest-row matching
- One-click copy of the full conversion row to the clipboard
- 100% client-side — instant results, no uploads, works offline in your browser
- Bilingual EN/TH interface for international shoppers
Frequently Asked Questions
Which clothing sizing systems does the converter support?
It supports US, UK, EU (European), IT (Italian), JP (Japanese), and AU (Australian) size numbers, plus the international XXS-3XL letter codes, across three garment tables: tops, dresses, and pants.
How accurate are the converted sizes?
The tables follow commonly published retailer charts, and every region is read from the same matched row so results stay consistent. However, brands cut garments differently — always confirm with the brand’s own size chart before buying.
Why do US pants use numbers like 30 while EU uses 44?
US pants sizes are traditionally the waist measurement in inches (e.g. W30), while most other regions use a numbered scale. The pants table maps inch waists to UK, EU, IT, JP, and AU equivalents directly.
What if my size is between two rows?
The converter snaps your input to the closest row in the chart. If you are between sizes, consider the larger one for a comfortable fit, or check the garment’s measured chest/waist in centimetres when the brand lists it.