UnitConv
Everyday tools

Clothing Size Converter

Convert S/M/L and US, UK, EU and Japanese clothing sizes for women and men in one tap

Your clothing size

Equivalent sizes
Alpha (S/M/L)M
US8-10
UK12-14
EU40-42
JP13-15

Full conversion table

Alpha (S/M/L)USUKEUJP
XS0-24-632-345-7
S4-68-1036-389-11
M8-1012-1440-4213-15
L12-1416-1844-4617-19
XL16-1820-2248-5021-23
XXL20-2224-2652-5425-27

These figures are a guide only — fit varies a lot by brand and garment. Always check the actual measurements (bust/chest, waist) or try the item on before buying.

About this tool

Clothing sizes are labeled differently around the world: the United States, the United Kingdom, continental Europe and Japan each use their own numbers, and on top of that many garments are sold with letter sizes such as S, M and L. So the same top can be a US 8, a UK 12, an EU 38, a JP 11 and a Medium all at once. This converter lets you choose women's or men's sizing, enter your size as an alpha letter (S/M/L) or a number in US, UK, EU or JP, and instantly read the equivalents in every other system. The charts are based on tops (shirts, blouses, sweaters). Because the systems do not line up perfectly, some inputs land between chart steps; in that case the closest size is shown and marked as approximate. Use it as a reliable starting point, then confirm fit with the brand's own size guide.

How to use

  1. 1 Choose Women or Men — the two charts use different numbers.
  2. 2 Select the system you already know: Alpha (S/M/L), US, UK, EU or JP.
  3. 3 Enter your size, for example M, 8 or 38.
  4. 4 Read the equivalent sizes, or scan the full table below to compare every size at a glance.

Frequently asked questions

How do I convert a US clothing size to EU?

Choose your gender, select US, enter your size and read off the EU value. As a rough guide for women's tops, EU ≈ US + 30 (a US 8 is about an EU 38), but the relationship is not perfectly linear, so rely on the chart rather than a single formula. Men's tops are usually compared by chest measurement instead, which is why the converter shows a full table.

What do S, M and L mean?

S, M and L are alpha (letter) sizes — Small, Medium and Large, often extended to XS, XL and XXL. They are an approximate band rather than an exact measurement, so one brand's Medium can match another brand's Large. The converter maps each letter to a typical numeric range, but always check the garment's actual measurements when the fit matters.

What is the difference between women's and men's sizes?

Women's and men's clothing use separate numbering scales and are cut to different body shapes, so a women's number and a men's number are not interchangeable. Men's tops are often sized by chest measurement in inches or centimeters, while women's tops mix numeric and alpha sizing. Always pick the chart that matches the garment you are buying.

How do I measure myself for the right size?

For tops, measure your bust or chest by running a tape around the fullest part, keeping it level and snug but not tight. Measure your waist at the narrowest point. Compare those numbers with the brand's size chart rather than guessing from a label, and measure over light clothing for consistent results.

Why doesn't my usual size fit the same in every brand?

Conversion charts standardize sizes, but real garments vary by brand, cut and fabric, and many labels use vanity sizing — deliberately marking items smaller than the historical standard. Stretch, fit (slim vs relaxed) and country of origin all shift the result too. Treat the conversion as a starting point and confirm with the maker's own measurements.

Related conversions

Buying shoes too? Pair this with the shoe-size converter, and use the length tool to switch between centimeters and inches when reading body measurements. Sizes always vary by brand, so use these as a guide and confirm with the maker's chart.