Panty sizing runs from XS to 3X in US letter sizing, corresponding to hip measurements from about 34 to 48+ inches, with matching numeric, UK, and EU sizes.
Panty sizing runs from XS to 3X in US letter sizing, corresponding to hip measurements from about 34 inches to 48 inches and up, with matching numeric, UK, and EU equivalents below.
Full Size Chart
| Hip (inches) | US Letter | US Numeric | UK | EU |
|---|---|---|---|---|
| 34″+ | XS | 0-2 | 6-8 | 34-36 |
| 36″+ | S | 4-6 | 8-10 | 36-38 |
| 38″+ | M | 8-10 | 10-12 | 38-40 |
| 40″+ | L | 10-12 | 12-14 | 40-42 |
| 42″+ | XL | 12-14 | 14-16 | 42-44 |
| 44″+ | 1X | 14-16 | 16-18 | 44-46 |
| 46″+ | 2X | 16-18 | 18-20 | 46-48 |
| 48″+ | 3X | 18-20 | 20-22 | 48-50 |
How to Read This Chart
Find your hip measurement in the left column, taken at the fullest point of your hips and seat, then read across for your size in whichever system you need. If your measurement falls between two rows, the higher size generally offers more comfort, while the lower one gives a snugger fit.
A Note on Brand Variation
This chart reflects common sizing conventions, but individual brands can shift a size or half-size in either direction depending on their own cut and fabric choices. Treat this as a reliable starting point, and check a specific brand’s own chart for anything you’re unsure about.
Half Sizes and In-Between Measurements
If your hip measurement falls between two rows on the chart, sizing up generally gives a more comfortable, longer-lasting fit, while sizing down gives a snugger, more second-skin feel — neither is more “correct,” it’s a preference between comfort and closeness of fit.
Why the Same Letter Size Still Varies by Brand
Two brands both labeling a garment “Large” can target different actual hip ranges, since there’s no single enforced industry standard the way there sometimes is for other clothing categories. Treating this chart as your starting hip-measurement reference — rather than assuming “Large” means the same number everywhere — avoids most of the frustration that comes from switching brands.
Using This Chart Alongside the Calculator
This chart is a quick lookup, but the Panty Size Calculator does the same conversion instantly from your exact measurement instead of rounding to the nearest chart row. For a measurement that falls right on a boundary, the calculator and this chart will agree — the difference only matters when you’re between two rows and want to see both nearby options at once.
Reading a Chart Correctly
A chart only gets you as far as your actual measurement is accurate — measure over minimal clothing, keep the tape parallel to the floor, and re-check the number if it feels off rather than assuming the chart is wrong.
Reading the Chart by Body Type
A hip-measurement chart works well for most body types, but if your waist-to-hip ratio is unusually high or low compared to average, the resulting size may fit the hips well but feel different at the waist. In that case, prioritize the hip measurement for the primary size, then check reviews for waist-specific fit notes on that style.
When Charts Disagree Between Brands
Two brands can list the exact same hip measurement range under different size labels — one calling 40 inches “Large,” another calling it “XL.” This isn’t an error, just different labeling conventions, which is exactly why measuring your actual hips and checking each brand’s specific chart matters more than assuming your usual letter size carries over.
Keep a Personal Reference Note
Once you’ve found your reliable size in two or three specific brands, keeping a short personal note of those brand-specific sizes saves you from re-measuring every single time you shop a familiar retailer.
Charts Improve With Your Own Data
Over time, cross-referencing your actual fit experience against multiple brands’ charts builds a more personalized sense of which brands run true, small, or large for your specific proportions.
FAQ
It reflects common conventions, but brands vary — check a specific brand's own chart if your fit seems off from this reference.
Extended-size retailers typically continue the pattern beyond 3X — check that retailer's specific chart for sizes past this range.
It's a general hip-based reference — styles with different rise or coverage can fit slightly differently even at the same chart size.
Panty size uses hip measurement alone, while bra size uses both band and cup measurements — the two systems aren't related.
There's no regulated standard for letter sizing the way there sometimes is for numeric sizing, so brands set their own ranges independently.
Generally yes, since numeric ranges tend to be narrower and more consistent, but always check the specific brand's inch measurements rather than assuming a number matches your usual size elsewhere.
Not always — UK, US, and EU underwear sizing conventions differ enough that a direct number-to-number conversion can be off; check hip measurements in inches or cm instead.
Some brands offer petite or extra-small ranges not shown on the main chart — check the brand's full size guide or contact customer service before assuming nothing will fit.
