Women's Plus-Size Sizing
Women's Plus-Size Chart 2026/2027 (14W-32W to US/UK/EU/CN/JP)
Women's plus-size clothing is sold under two different systems that don't map onto each other in an obvious way: a numeric "W" size (14W, 18W, 22W and up) on one hand, and a letter "X" size (1X, 2X, 3X and up) on the other, often on the same rack from the same brand. This page lines both systems up against each other and against UK, EU, China and Japan sizing, using bust measurement as the anchor, since bust (not waist or hip alone) is what most plus-size tops and dresses are graded against.
Women's plus-size chart: numeric (W) to letter (X) to US/UK/EU
The relationship between numeric plus sizes and letter plus sizes is fairly consistent across mainstream US retailers, even though the exact bust measurement behind each size still varies by brand.
| US number | US / UK letter | EU | Bust (in) | Bust (cm) |
|---|---|---|---|---|
| 14W–16W | 1X (XL) | EU 46 | 44–46 in | 112–117 cm |
| 18W–20W | 2X (XXL) | EU 50 | 47–49 in | 119–124 cm |
| 22W–24W | 3X (XXXL) | EU 54 | 50–52 in | 127–132 cm |
| 26W–28W | 4X (XXXXL) | EU 58 | 53–55 in | 135–140 cm |
| 30W–32W | 5X (XXXXXL) | EU 62 | 56–58 in | 142–147 cm |
Each numeric row spans two W sizes because most brands don't grade a separate size for every even number once you're past 14W: 14W and 16W commonly share a single 1X cut, 18W and 20W share 2X, and so on. If a specific retailer does grade them separately, treat the bust range above as covering both and check that brand's own chart for which end of the range each individual W size lands on.
How to measure your bust for plus-size numeric sizing
Bust measurement drives numeric plus sizing more than any other single number, which makes it worth getting right before you buy.
- Wear a well-fitting, non-padded bra and wrap the tape around the fullest part of your bust, keeping it level across your back rather than riding up or down.
- Keep the tape snug against your body without pulling it tight or compressing anything; you should be able to slide one finger comfortably underneath.
- If your bust measurement falls between two rows, size up rather than down, since plus-size garments are generally designed with a little more structural ease and a slightly loose fit is far more comfortable than a tight one across the bust and back.
- Waist and hip matter for dresses, skirts and fitted bottoms, but for tops and most dresses, bust alone gets you within one size of the right fit in the vast majority of cases.
China (CN) and Japan (JP) equivalents for women's plus sizing
The same pattern documented on the main XXXL & XXXXL size chart applies here: a China-based retailer's printed size, whether labelled numerically or with an X, commonly runs one to two sizes smaller than the same label from a US or European brand, particularly through the bust and shoulders. When a specific product's own measurements aren't listed, sizing up by one size (two, if you're near the top of your usual range) is the safer default for China-based plus-size retailers.
Japanese women's plus sizing is less standardised around a single numeric system than US sizing is, and often runs smaller overall through the bust even at a nominally equivalent size label. Where a Japanese retailer lists a bust measurement directly (rather than just a size name), that number is far more reliable than trying to match a US letter or number size across the two systems.
Men's/unisex sizes versus women's numeric plus sizes
If you're comparing a unisex or men's plus-size top (labelled L through 8XL) against a women's-specific numeric size, bust and chest measurement is still the number that lines the two systems up, but the cut is different: women's-specific plus-size garments are typically shaped through the waist rather than boxy top to bottom the way a unisex tee often is. For a straightforward like-for-like chest/bust comparison across both labelling systems, see the general XXXL & XXXXL size chart; for garment-specific shirt measurements (chest, neck and sleeve together), see the XXXXL shirt size chart. As with every chart on this site, nothing you select here is stored or sent anywhere, see the privacy policy for the full explanation.
Frequently asked questions
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