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Clothing and shoe size converter for AU, UK, US, CA and EU

Find your best clothing and shoe size match before you buy. SizeSwapper compares official brand size guides, AU, UK, US, CA and EU sizing, and your own measurements — the strongest fit guidance available, short of trying it on. Get a confidence rating and between-size advice, so you shop faster with less guesswork and fewer wrong-size returns.

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      Your closest match:

      This is the closest match based on available published measurements. Product-level fit may still vary.

      Uniqlo vs COS sizing

      This comparison uses visible measurement rows to map published sizes from Uniqlo to the closest COS size.

      Women tops

      Source sizeSource bust/chestSource waistSource hipClosest targetTarget bust/chestTarget waistTarget hip
      Uniqlo XXS 76.5 58.5 83.5 COS 32 76 60 84
      Uniqlo XS 80 62.5 88 COS 34 80 64 88
      Uniqlo S 83 66 91 COS 36 84 68 92
      Uniqlo M 89 72 97 COS 38 88 72 96
      Uniqlo L 95 78 103 COS 42 96 80 104
      Uniqlo XL 101 84 109 COS 44 100 84 108

      Women dresses

      Source sizeSource bust/chestSource waistSource hipClosest targetTarget bust/chestTarget waistTarget hip
      Uniqlo XXS 76.5 58.5 83.5 COS 32 76 60 84
      Uniqlo XS 80 62.5 88 COS 34 80 64 88
      Uniqlo S 83 66 91 COS 36 84 68 92
      Uniqlo M 89 72 97 COS 38 88 72 96
      Uniqlo L 95 78 103 COS 42 96 80 104
      Uniqlo XL 101 84 109 COS 44 100 84 108
      Fit notes: True to size Runs large (Oversized architecture) True to size / Relaxed straight cuts

      Sources: Uniqlo and COS official size guides. Last checked: 2026-06-20.