👕 Clothing Size Converter

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

Select your category, enter your known size, and get the equivalent in every other system — no guessing, no returns.

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

US Clothing Sizes Explained

The United States uses a unique sizing system that differs significantly from European and British standards. Women's sizes are typically expressed as even numbers (0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20), or as letter sizes (XS, S, M, L, XL, XXL). Men's dress shirts use neck size in inches (14, 14½, 15, 15½, 16, 16½, 17), while suits and jackets use chest measurements in inches (36, 38, 40, 42, 44, 46).

Women's Size Chart: US to EU/UK

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

Note: these conversions are approximate. American brands often practice vanity sizing — labeling clothes smaller than they actually are — so always check the brand's specific size chart.

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

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

For dress shirts, the US/UK collar size in inches converts to EU centimeters by multiplying by 2.54. For example, a US 15½" collar corresponds to EU 39/40.

US Shoe Size Chart

American shoe sizes differ between men's and women's, and differ significantly from EU sizes. Key conversions:

  • Women's: US 5 = EU 35/36 = UK 3; US 6 = EU 36/37 = UK 4; US 7 = EU 37/38 = UK 5; US 8 = EU 38/39 = UK 6; US 9 = EU 39/40 = UK 7; US 10 = EU 40/41 = UK 8
  • Men's: US 7 = EU 40 = UK 6; US 8 = EU 41 = UK 7; US 9 = EU 42 = UK 8; US 10 = EU 43 = UK 9; US 11 = EU 44 = UK 10; US 12 = EU 45 = UK 11

There is a half-size offset between US men's and women's: a US women's 9 and US men's 7.5 are typically the same physical shoe size.

Bra Size Chart: US to EU

US bra sizes use inches for the band (32, 34, 36, 38, 40) and letters for the cup (A, B, C, D, DD/E, DDD/F). The EU system uses centimeters for the band (70, 75, 80, 85, 90). The main conversions:

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

Note that US cup sizes diverge from UK and EU after D: US DD = UK E = EU E.

Tips for Shopping International Sizes

  • Always check the brand's size chart: even within the US, brands vary widely. An XL at Gap is not the same as an XL at Banana Republic.
  • Take your measurements: use a soft tape measure to measure your bust, waist, and hips in inches. This is more reliable than guessing from letter sizes.
  • Read customer reviews: shoppers often note whether an item runs large, small, or true to size — valuable information not found in any size chart.
  • Check return policies before buying internationally: if ordering from a European site, confirm the return policy covers size exchanges.
  • For shoes, measure your foot length: place your foot on paper, mark the heel and longest toe, and measure. Compare to the brand's size chart rather than relying solely on size conversions.

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Frequently Asked Questions

What US size corresponds to EU 38?
For women's clothing, EU 38 corresponds to approximately US 6 and UK 10. For men's clothing (suits and jackets), EU 48 corresponds to US/UK 38. For women's shoes, EU 38 corresponds to US 7.5 to 8. Always check the specific brand's size chart, as there can be variation.
Are US and UK clothing sizes the same?
No. For women's clothing, UK sizes are typically 4 numbers higher than US sizes (US 6 = UK 10). For men's suits and jackets, US and UK sizes are the same. For shoes, UK sizes for men are typically 1 size lower than US (US 10 = UK 9), while for women they are about 2.5 sizes lower (US 8 = UK 5.5).
How do I convert my US shoe size to EU?
For women's shoes, add approximately 30 to 31 to your US size to get the EU size (US 7 ≈ EU 37/38). For men's shoes, add approximately 33 to your US size (US 9 ≈ EU 42). The conversion is not always exact because the two systems use different increments. For the most accurate fit, measure your foot in centimeters and compare to the brand's size chart.
What does "runs small" or "runs large" mean?
These are informal descriptions from shoppers and brands indicating that a garment fits smaller or larger than the labeled size. "Runs small" means you should order one size up from your usual size; "runs large" means you can order one size down. Many US brands practice vanity sizing (labeling clothes with smaller numbers to flatter shoppers), so actual fit can vary significantly from labeled size.
How do I find my US bra size?
Measure your band size by wrapping a tape measure snugly around your ribcage just below your breasts (in inches). If the number is even, that's your band size; if odd, round up to the nearest even number. Then measure around the fullest part of your bust. The difference in inches between the bust and band measurement determines your cup: 1" = A, 2" = B, 3" = C, 4" = D, 5" = DD. For example, a 34" band with a 37" bust = 34C.