🔄 Converters

👗 👗 Clothing Size Converter: US, UK, EU, and Asian Sizes

Learn how to convert clothing sizes between US, UK, EU, and Asian sizing systems. Covers women's, men's, and children's sizes with conversion tables for tops, bottoms, and dresses.

⏱️ 7 min read🦉 365tool.net🌍 For everyone worldwide

Clothing sizes vary dramatically between countries and even between brands within the same country. US, UK, European, and Asian sizing systems all use different numbering conventions — and even the same number can mean different things in different regions. This guide gives conversion tables for the most common international size systems to help you buy the right fit online.

Women's Tops and Dresses

US	UK	EU	France	Italy	Bust (in)
XS / 0	6	32	34	36	31–32
S / 4	8	36	38	40	33–34
M / 8	12	40	42	44	36–37
L / 12	16	44	46	48	39–40
XL / 16	20	48	50	52	42–43

Key rules: UK size = US size + 4 (approximately). EU size = US size + 30 (approximately). French sizes = EU + 2. Italian sizes = EU + 4.

Men's Shirt Sizes

US / UK	EU	Chest (in)	Chest (cm)
XS	44	34–35	86–89
S	46–48	35–37	89–94
M	48–50	38–40	96–102
L	52–54	41–43	104–109
XL	56–58	44–46	112–117

Note: US and UK men's sizes are generally the same for S/M/L/XL labels. EU numeric sizes (44, 46, 48...) are based on chest circumference in centimeters halved.

Asian Sizing

Asian sizes (especially for fast fashion from Chinese, Korean, and Japanese brands) typically run 1–2 sizes smaller than equivalent US/EU sizes. A US Medium (M) often corresponds to an Asian XL or XXL. Always check the brand's specific measurement chart rather than relying on letter size alone.

Asian S ≈ US XS
Asian M ≈ US S
Asian L ≈ US S–M
Asian XL ≈ US M
Asian XXL ≈ US L

Why Sizes Differ Between Countries

Clothing sizes were historically developed independently in each country, calibrated to the average body measurements of their respective populations at the time of standardization. As average body proportions differ between populations and change over time, and as "vanity sizing" (making labeled sizes smaller to flatter customers) has shifted US and UK sizes upward, the divergence between systems has grown. This is why body measurements (chest/bust, waist, hips in cm or inches) are always more reliable than label sizes for international purchases.

Best Practice for Online Shopping

Always check the brand's specific size chart — not just country-to-country conversions
Measure yourself in centimeters (chest, waist, hips, inseam) and compare to the chart
Check customer reviews for notes on sizing (e.g., "runs small," "true to size")
For luxury brands, sizing often runs smaller than high street equivalents

Try It Yourself! ✨

Use our free Clothing Size Converter — results appear as you type. No sign-up needed!

🚀 Open Clothing Size Converter Free

❓ Frequently Asked Questions

What is my EU size if I wear a US size 8?▼

US women's size 8 is approximately EU 40, UK 12. As a rule of thumb: EU size ≈ US size + 30 for women's clothing. However, sizing varies by brand and country, so always check the specific brand's measurement chart and compare actual measurements (bust, waist, hip in cm) rather than relying solely on size number conversions.

Why do Asian clothing sizes run small?▼

Asian sizing systems (particularly Chinese, Korean, and Japanese fast fashion) are calibrated to average body measurements that are typically smaller than US and EU averages. A US Medium often corresponds to Asian XL or XXL. Always check the brand's specific measurement chart — centimeter measurements are more reliable than letter or number size labels for international purchases.

What is the difference between US and UK women's sizes?▼

UK women's sizes are approximately 4 numbers higher than the equivalent US size. US size 4 ≈ UK size 8; US size 8 ≈ UK size 12; US size 12 ≈ UK size 16. This offset is consistent but approximate — individual brands may differ slightly. EU sizes use a completely different numbering system (32, 34, 36...) based on body measurements.

How do EU numeric clothing sizes work?▼

EU clothing sizes are loosely based on body measurements. For women, EU size ≈ bust in cm minus ~8, giving sizes like 32, 34, 36, 38, 40. For men's shirts, EU size ≈ collar circumference in cm (37, 38, 39...) or chest circumference halved. The exact formula varies by garment type and country, so use actual measurement charts.

Should I use size conversions or body measurements for online shopping?▼

Always use body measurements when possible. Measure your chest/bust, waist, and hips in centimeters, then compare to the brand's specific size chart. Size label conversions (US→EU→UK) are approximate and vary between brands. "Vanity sizing" has shifted labeled sizes over time, making the same label mean different things across brands and decades.