XXL means the same thing as 2XL, and XXXL means the same thing as 3XL. The X-count in front of the L is literally counting how many times "extra" applies: one extra (XL), two extra (XXL, also written 2XL), three extra (XXXL, also written 3XL). In chest inches, using Bella+Canvas's own general size chart, XL fits 46-49 inches, XXL fits 50-53 inches, and XXXL fits 54-57 inches. Both questions, "what number is this letter" and "what number of inches is this letter," have real answers, and we cover both below.
Letter Size to X-Count: The Simple Conversion
| Letter Size | X-Count / Number Style |
|---|---|
| XL | Extra Large, no number prefix |
| XXL | 2XL |
| XXXL | 3XL |
| XXXXL | 4XL |
| XXXXXL | 5XL |
Neither style, the X-count or the letter count, is more correct than the other. Brands and retailers choose one or the other for their tags, and a few print both. Match the actual chest measurement, not the label style, when you are comparing across brands.
Letter Size to Chest Inches: The Full Range
This is Bella+Canvas's own general size chart for men's and unisex fit, fetched live from bellacanvas.com today. It is a "chest to fit" circumference chart, meaning you measure around the fullest part of the body, the same method Gildan uses.
| Letter Size | Chest to Fit (in) |
|---|---|
| XS | 31-34 |
| S | 34-37 |
| M | 38-41 |
| L | 42-45 |
| XL | 46-49 |
| XXL (2XL) | 50-53 |
| XXXL (3XL) | 54-57 |
| XXXXL (4XL) | 58-61 |
| XXXXXL (5XL) | 62-65 |
How Gildan and Comfort Colors Compare in the Plus Range
Different brands measure the plus range slightly differently. Here is how Gildan's fits-chest circumference and Comfort Colors's laid-flat spec compare to the Bella+Canvas chart above, using the same verified numbers from our full XXXL and XXXXL chart.
| Letter Size | Gildan 5000 (chest to fit, in) | Comfort Colors 1717 (flat width, in) |
|---|---|---|
| XXL (2XL) | 50-52 | not verified for this article |
| XXXL (3XL) | 54-56 | 27 |
| XXXXL (4XL) | 58-60 | 29 |
| XXXXXL (5XL) | 62-64 | not made in this size |
Comfort Colors publishes laid-flat measurements, so double the flat width for an apples-to-apples comparison to Gildan or Bella+Canvas. Comfort Colors also states a 2 inch tolerance on its official sheet because the fabric is garment-dyed after construction and shrinks slightly during that process.
For Ladies: Numeric Plus Sizing
Some retailers label women's plus sizes with a number-and-X system, like 1X, 2X, or 3X, instead of XL, XXL, and XXXL. We checked for an official manufacturer mapping between this 1X/2X/3X system and a specific dress size or chest measurement and could not verify one from a live source today. We are not guessing at that conversion here. What we can confirm is Bella+Canvas's own women's plus chart, which uses XL through 3XL directly rather than the 1X/2X/3X style. See our women's XXL to 4XL size chart for those verified dress-size ranges.
What number is XXXL?
XXXL is also called 3XL. The X-count and the letter-repeat style both refer to the identical size within a brand. In Bella+Canvas's chart, XXXL fits a 54-57 inch chest.
What does XXXL mean in number?
It means three extras beyond large, written either as XXXL or 3XL. Both are the same size. In chest inches, that is 54-57 in Bella+Canvas's chart or 54-56 in Gildan's chart.
Is XXL the same as size 2?
XXL is the same as 2XL, if that is what "size 2" means to you. It is not the same as a numeric dress size 2, which is a completely different sizing system used for women's fitted clothing, not for t-shirt letter sizes.
What is XXXL in ladies sizing?
We could not verify an official 1X/2X/3X-to-dress-size conversion from a manufacturer today, so we are not listing one. Bella+Canvas's own women's plus chart uses XL through 3XL directly: 3XL corresponds to dress size 23-27.
Is there a universal shirt-size-to-number conversion?
No single universal standard exists across every brand. The X-count style (XXL, XXXL) is consistent in meaning, but the actual chest inches behind each letter size vary by brand, which is why we show Bella+Canvas, Gildan, and Comfort Colors side by side above instead of one universal number.
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Related Sizing Guides
- XXXL and XXXXL Shirt Size Chart
- Where to Buy XXXXL Shirts
- Women's XXL to 4XL Shirt Size Chart
- Adult Medium Size Chart
- How to Measure Chest for a T-Shirt
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