👕 Clothing Size Converter

Use our free clothing size converter to instantly find your size in any international sizing system. Whether you're shopping from a US, European, or Japanese retailer, this tool converts between UK, EU, US, and JP sizes for women's, men's, and kids' clothing, shoes, and bras.

Select your clothing category, enter your known size, and get all international equivalents in seconds.

Enter your size in the selected system (e.g. 42, M, 38, 9.5)

UK Clothing Sizes Explained

The United Kingdom uses its own sizing system that sits between US and EU standards. Women's UK sizes typically run from 6 to 22 (even numbers), while US sizes run 2 numbers lower (UK 10 = US 6). Men's suits and jackets in the UK are sized the same as the US in inches (36, 38, 40, 42, 44, 46), but the EU equivalent is a completely different number. Dress shirts use collar size in inches, just like the US.

Women's Size Chart: UK to EU/US

  • UK 4 = EU 32 = US 0 — XXS
  • UK 6 = EU 34 = US 2 — XS
  • UK 8 = EU 36 = US 4 — S
  • UK 10 = EU 38 = US 6 — S/M
  • UK 12 = EU 40 = US 8 — M
  • UK 14 = EU 42 = US 10 — M/L
  • UK 16 = EU 44 = US 12 — L
  • UK 18 = EU 46 = US 14 — XL
  • UK 20 = EU 48 = US 16 — XXL

Petite and plus-size ranges follow the same conversion logic but may have different proportions. Always check the specific brand's size guide, as UK high street brands (M&S, Next, ASOS) can vary slightly.

Men's Suit & Jacket Size Chart: UK to EU

  • UK/US 36 = EU 46 — S
  • UK/US 38 = EU 48 — M
  • UK/US 40 = EU 50 — L
  • UK/US 42 = EU 52 — XL
  • UK/US 44 = EU 54 — XXL
  • UK/US 46 = EU 56 — XXXL

For dress shirts, both UK and US use neck size in inches. EU shirts use centimetres — multiply the inch measurement by 2.54 (e.g. 15.5" × 2.54 = 39.4 cm, so EU 39/40).

UK Shoe Size Chart

UK shoe sizes differ from both US and EU systems, and also differ between men's and women's. Key conversions:

  • Women's: UK 3 = EU 36 = US 5; UK 4 = EU 37 = US 6; UK 5 = EU 38 = US 7; UK 6 = EU 39 = US 8; UK 7 = EU 40/41 = US 9; UK 8 = EU 42 = US 10
  • Men's: UK 6 = EU 39/40 = US 7; UK 7 = EU 41 = US 8; UK 8 = EU 42 = US 9; UK 9 = EU 43 = US 10; UK 10 = EU 44 = US 11; UK 11 = EU 45 = US 12

Note: UK women's shoe sizes are typically 2.5 to 3 sizes smaller than the equivalent US women's size (UK 5 = US 7.5).

Bra Size Chart: UK to EU/US

UK bra sizing uses inches for the band (28, 30, 32, 34, 36, 38, 40) — the same system as the US. However, UK cup sizes differ slightly after D: the UK uses DD, E, F, FF, G, whereas the US uses DD, DDD/E, F. The EU system uses centimetres for the band (65, 70, 75, 80, 85, 90).

  • UK 32B = EU 70B = US 32B
  • UK 34C = EU 75C = US 34C
  • UK 36D = EU 80D = US 36D
  • UK 36DD = EU 80E = US 36DD
  • UK 38E = EU 85E = US 38DD

Tips for Shopping International Sizes

  • Always check the retailer's own size guide: ASOS, Marks & Spencer, and Next all have slightly different fits even within the same nominal UK size.
  • Take your body measurements: measure your bust, waist, and hips in centimetres. This is more reliable than size labels when shopping internationally.
  • Read customer reviews: shoppers often note whether a garment runs true to size, large, or small — essential information when buying from overseas brands.
  • Check returns policies before purchasing from EU sites: post-Brexit, returns from UK to EU retailers may involve additional costs and delays.
  • For shoes, measure your foot: stand on a piece of paper, mark the heel and the tip of your longest toe, and measure in centimetres. This removes guesswork from size conversions.

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Frequently Asked Questions

What UK size is equivalent to EU 38?
For women's clothing, EU 38 is equivalent to UK 10 and US 6. For shoes (women's), EU 38 is equivalent to UK 5 and US 7 to 7.5. For men's suits, EU 48 corresponds to UK/US 38. Always verify with the specific brand's size guide as there can be slight variations.
Are UK and US clothing sizes the same?
No. For women's clothing, UK sizes are 4 numbers higher than US sizes: UK 10 = US 6, UK 12 = US 8. For men's suits and jackets, UK and US sizes are the same in inches. For shoes, men's UK sizes are 1 lower than US (UK 9 = US 10); women's UK sizes are about 2.5 lower than US (UK 5 = US 7.5).
How do UK shoe sizes compare to EU?
UK and EU shoe sizes use different scales. For women's shoes, EU sizes are approximately 33 to 34 higher than UK sizes: UK 5 ≈ EU 38, UK 6 ≈ EU 39. For men's shoes, EU sizes are approximately 33 to 34 higher: UK 8 ≈ EU 42, UK 9 ≈ EU 43. The most reliable method is to measure your foot length in centimetres and compare directly to the brand's chart.
Do UK clothing sizes run smaller than US sizes?
The numbering differs, but the actual garment size is usually equivalent once you account for the offset. A UK 10 and a US 6 represent the same body measurements. However, fit and cut can differ: US brands often cut clothes with a slightly more relaxed fit, while UK high street brands sometimes run a little smaller in practice. When in doubt, refer to the measurements in centimetres rather than the size number.
What is the difference between UK and EU bra sizes?
UK and EU bra sizing differs mainly in the band measurement and cup labelling for larger sizes. UK uses inches for the band (32, 34, 36...) while EU uses centimetres (70, 75, 80...). The conversion is: UK band = EU band ÷ 2.54, or roughly UK band = (EU band / 5) × 2 + 2. Cup sizes differ after D: UK uses DD, E, F, FF, G; while EU typically uses E, F, G. A UK 36DD equals an EU 80E.