Japan Plus Size Conversion Chart for Women: Japanese Clothing Sizes to US, UK & International Sizes

Save this size chart for when you’re shopping for plus size clothing in Japan!

Plus size in Japan starts at 2L, and many Japanese plus size stores carry sizes up to 10L.

If you typically wear a US women’s size L, you may find yourself shopping in Japan’s plus size range. That said, sizing isn’t always a direct one-to-one conversion. Japanese women’s fashion often has different proportions from Western clothing, so many foreigners in Japan find that they need to size up to better accommodate their hips, shoulders, or bust.

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Japanese Plus Size Conversion Chart (US, UK & Japan Sizes)

This chart provides a general comparison of plus sizes in Japan with US and UK sizing. Keep in mind that Japanese clothing sizes can vary significantly between brands. You may wear a 2L at one store and a 5L at another depending on the fit, cut, and measurements of each garment.

To make shopping easier, take your body measurements in centimeters (cm) and keep them handy when checking size charts. For the best fit, always refer to the individual brand's sizing guide before purchasing.

Japanese Women's Plus Size Conversion Chart (US, UK & Japan Sizes)
Japan (Numeric)	Japan (Letter)	US	UK
13	2L / LL	10	14
15	3L	12	16
17	4L	14	18
19	5L	16	20
21	6L	18	22
23	7L	20	24
25	8L	22	26
27	9L	24	28
29	10L	26	30

If you’re new to shopping for women’s plus size clothing in Japan, seeing a larger size on the label than you’re used to can feel surprising at first. But try not to focus too much on the number. Finding a comfortable fit that works for your body is always more important than the size written on the tag.

Whenever you shop in Japan, whether in-store or online, it’s always worth checking each brand’s own size chart and garment measurements. Most Japanese size charts are listed in centimeters, so it helps to have your current measurements on hand before you start shopping.

One of the most helpful things you can do is measure a few favorite pieces from your own wardrobe. Japanese online stores are often excellent about listing detailed garment measurements, which makes it much easier to compare an item you’re considering with clothing you already own and know fits the way you like.