Underwear Size Calculator
Find your perfect fit in US, EU, and UK sizes
Measure around your natural waistline and the fullest part of your hips.
Commonly Asked Questions
In US numerical sizing, a size 7 panty typically corresponds to a size Large (L). This usually fits women with a waist measurement of 31.5" - 34.5" and hip measurements of 41.5" - 44.5". It generally translates to a US dress size 12-14.
An Extra Large (XL) panty size generally fits women with a waist of 35" to 38.5" and hips of 45" to 48.5". In numerical underwear sizing, this is often labeled as a size 8. It usually equates to a US dress size 16-18.
A "95cm" panty size refers directly to your hip circumference. If your hips measure 95cm, you generally wear a size Small (S) in standard international sizing, a US size 4-6, or a UK size 8-10. Always double-check if a brand specifically means waist or hips when using cm, but for women's bottoms, it is almost always the hip measurement.
If a women's pant size is labeled "32," it usually refers to a 32-inch waist. Depending on the brand, a 32" waist translates to a Large (L) or a US dress size 12. If referring to EU sizing (e.g., EU 32), it is entirely different and means an Extra-Extra-Small (XXS).
The most accurate way to calculate your underwear size is to measure your natural waist (the narrowest part of your torso) and your hips (the fullest part of your buttocks) using a soft tape measure. Once you have these two numbers in inches or centimeters, use our calculator above or compare them to a standard sizing chart.
For Men, a size Large (L) typically fits a waist of 36 to 38 inches. A 32 to 34-inch waist is considered a Medium (M).
For Women, a size Large (L) usually corresponds to a waist of about 31.5 to 34.5 inches.
If your waist measures 32-34 inches, you are a solid Medium (M) in men's underwear. In women's underwear, a 32-34 inch waist puts you in the Large (L) category.
Size 7 is a standard US numerical size for women's panties. It is equivalent to an alpha size Large (L), designed for waist measurements around 31.5" - 34.5" and hip measurements around 41.5" - 44.5".
Underwear Size Calculator Women's
Finding the perfect fit shouldn't feel like a guessing game. If you've ever dealt with waistbands that dig in, fabrics that bunch up, or styles that simply don't flatter your natural curves, you are not alone. The apparel industry is notorious for "vanity sizing," meaning a Medium in one brand might fit like an Extra-Small in another. That is exactly why we built our highly accurate underwear size calculator women's tool.
By simply taking two quick measurements—your waist and your hips—our algorithm cross-references standard global sizing charts and specific brand tendencies to give you a size you can actually trust. Whether you are shopping for seamless thongs, full-coverage briefs, or comfortable boyshorts, knowing your precise mathematical size eliminates the hassle of returns and ensures all-day comfort.
Panty Size Calculator Women's
When using our panty size calculator women's feature, it is crucial to measure yourself correctly. Always use a soft, flexible measuring tape. For your waist, measure around the narrowest part of your torso, usually right above your belly button. For your hips, measure around the absolute fullest part of your buttocks and hips. Our calculator automatically factors in the difference between these two numbers to suggest a size that won't ride up or slip down.
Underwear Size Chart Women
If you prefer to manually check your measurements against standard industry benchmarks, we have compiled the most comprehensive tables below. Keep in mind that fabrics with high elastane or spandex blends will offer more stretch, sometimes allowing you to size down if you prefer a compressive, snug fit. Conversely, 100% cotton garments have little to no give, meaning you should always adhere strictly to the chart or size up if you are between sizes.
Inner Size Chart Female
| Size Label | Waist (Inches) | Hips (Inches) | Dress Size Equivalent |
|---|---|---|---|
| XXS | 22" - 23.5" | 32" - 33.5" | 00 |
| XS | 24" - 26" | 34" - 36" | 0 - 2 |
| S | 26.5" - 28.5" | 36.5" - 38.5" | 4 - 6 |
| M | 29" - 31" | 39" - 41" | 8 - 10 |
| L | 31.5" - 34.5" | 41.5" - 44.5" | 12 - 14 |
| XL | 35" - 38.5" | 45" - 48.5" | 16 - 18 |
| XXL | 39" - 42.5" | 49" - 52.5" | 20 - 22 |
Underwear Size Chart In CM
For our international readers, or those who simply prefer the precision of the metric system, here is the exact same data converted into centimeters. Measuring in centimeters is often recommended by tailors because it leaves less room for rounding errors.
| Size Label | Waist (cm) | Hips (cm) |
|---|---|---|
| XXS | 56 - 60 cm | 81 - 85 cm |
| XS | 61 - 66 cm | 86 - 91 cm |
| S | 67 - 72 cm | 92 - 98 cm |
| M | 73 - 79 cm | 99 - 104 cm |
| L | 80 - 87 cm | 105 - 113 cm |
| XL | 88 - 98 cm | 114 - 123 cm |
| XXL | 99 - 108 cm | 124 - 133 cm |
Underwear Size Chart Women US
In the United States, sizing can be particularly tricky because brands often use numerical sizing (like 5, 6, 7) for traditional briefs, while using alpha sizing (S, M, L) for thongs and modern cuts. A size 5 typically correlates to a Small, a size 6 to a Medium, and a size 7 to a Large. Always check the brand's specific tag, as US vanity sizing tends to run slightly larger than European sizing.
Underwear Size Chart Women UK
The UK sizing system is numerical, but it is entirely different from the US numerical system. If you are a US 8, you are generally a UK 12. British sizing is known for being slightly more tailored and true-to-measure. When shopping across the pond, always remember to add 4 to your US dress size to find your baseline UK panty size.
Underwear Size 85-90
A very common question we receive from international shoppers is how to interpret numerical ranges that don't look like standard US or UK sizes. If you are looking at a tag and see Underwear size 85-90, you are most likely looking at a European (often French or Italian) or Japanese sizing label that refers directly to your hip measurement in centimeters.
85 cm Underwear Size Chart For Ladies
To break this down simply: an 85 cm to 90 cm hip measurement is quite petite. If you fall into this range, your waist is likely around 60cm to 65cm (24 to 25.5 inches).
- In the US: You will wear an Extra-Small (XS) or a dress size 0-2.
- In the UK: You will fit best in a Size 6.
- In the EU: You are looking for a Size 34.
- In Australia (AU): Look for a Size 6.
If you have an 85 cm hip, avoid buying size Mediums or standard "One Size Fits Most" options, as they will likely bunch or sag. Stick strictly to XS categories for a seamless, comfortable fit.
Underwear Size Calculator Men
Sizing for men is traditionally more straightforward than for women, primarily because men's underwear sizing relies almost exclusively on the waist measurement. Men's hips and seat proportions vary less dramatically relative to their waists, so manufacturers design boxers, briefs, and boxer-briefs with enough stretch in the back to accommodate most body types. Our underwear size calculator men takes your natural waist measurement and instantly matches it against top brands.
However, fit preferences play a massive role here. If you prefer high-compression athletic boxer briefs (like those from Under Armour or Nike), you might want to stick strictly to the calculated size. If you prefer loose, woven cotton boxers, you might enjoy sizing up for extra breathability and freedom of movement.
Underwear Size Men
Here is the standard baseline chart for men. To measure properly, take the tape measure and wrap it around where your pants naturally sit (usually right at the top of the hip bone). Do not suck in your stomach, and keep one finger between the tape and your body for a comfortable baseline.
| Men's Size | Waist (Inches) | Waist (Centimeters) |
|---|---|---|
| Small (S) | 28" - 30" | 71 - 76 cm |
| Medium (M) | 32" - 34" | 81 - 86 cm |
| Large (L) | 36" - 38" | 91 - 96 cm |
| X-Large (XL) | 40" - 42" | 101 - 106 cm |
| XX-Large (XXL) | 44" - 46" | 111 - 116 cm |
Pro Tip for Men: If your waist measurement lands exactly on an odd number (like 35 inches), you are between a Medium and a Large. Look at your thighs. If you have larger, muscular thighs, size up to a Large to prevent the legs of your boxer briefs from rolling up. If you have slender legs, size down to a Medium for a better fit around the waist.
What Users Are Saying
Real feedback from people who found their perfect fit using our calculator.
"This saved me from returning so much stuff! I never knew SKIMS ran small until this calculator pointed it out. Bought a size up like it suggested and it fits perfectly."
"Really solid tool for men. I've been floating between M and L for years. Hiding the hip measurement for guys makes it so fast and easy to use."
"The UK to US conversion chart is an absolute lifesaver. I was buying from an overseas boutique and would have ordered something three sizes too small without this."
"I finally understand what '85 cm' means on those European tags! The explanation was so clear. The calculator is super fast and easy to use on my phone too."
"Simple, fast, and does exactly what it says. I like that it hides the hip measurement for guys so I don't have to fill out useless info."
"I love the brand breakdown. Seeing how my size changes depending on whether I buy Calvin Klein or Victoria's Secret is genius. Great design."
"I'm currently pregnant and my body is changing rapidly. Being able to just plug in my new measurements in cm and instantly know what size maternity undies to buy has taken away so much stress."
"I used this to help buy a gift for my wife. I found a pair of her pants to get the measurements and used this calculator. The gift fit her perfectly and I looked like a hero. 10/10."
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