5 Myths About International Clothing Sizes, Debunked

Clothing sizes don't translate one-to-one between countries. A women's US 8 is a UK 12, an EU 38, a French 40 and an Italian 44 on the standard chart, and men's jackets are labeled in chest inches in the US but in roughly half the chest in centimeters in Europe. The most reliable way to buy abroad is to convert from your body measurement, not from the label, and then check the brand's own chart.

Here are five beliefs that lead to wrong-size orders, and what the numbers actually say.

Myth 1: "A size 8 is a size 8 wherever you shop"

This is the most common mistake, and it can cost you two sizes. Women's dress and top sizes follow fixed offsets between systems on the standard chart:

US	UK / AU	EU / DE	FR / ES	IT	JP
4	8	34	36	40	7
8	12	38	40	44	11
12	16	42	44	48	15

The pattern is simple once you see it: UK is US + 4, EU and German sizes are US + 30, French and Spanish are EU + 2, and Italian is EU + 6. So if you're a US 8 and order a UK 8 because the number looks familiar, you'll get the equivalent of a US 4.

Myth 2: "European sizes are the same across Europe"

They aren't. Germany and much of northern Europe use one scale, France and Spain run two numbers higher, and Italy runs six higher. An Italian 44 and a German 44 are two different garments: the Italian 44 matches an EU 38 (US 8), while the German 44 matches US 14.

This matters most with designer and luxury labels, which often stay with their home country's system even when sold elsewhere. If a size label just says "44", find out which country the brand is from before converting.

Myth 3: "Men's sizes are simpler, so they convert directly"

Men's sizing is more logical, but each garment uses a different measurement, and the US and EU number them differently:

• Suits and jackets: the US and UK size is the chest in inches. A 40 fits a chest of about 102 cm. The EU and Italian size is roughly half the chest in centimeters, so the same jacket is an EU 50.
• Dress shirts: sized by neck circumference. A 15.5-inch neck is about 39 cm, which is the EU size.
• Trousers and jeans: labeled by waist in inches in the US and UK, often with an inside leg as well (W32 L32). A 32-inch waist is about 81 cm and an EU 48 on the chart.

None of these numbers can be swapped directly. A "40" jacket and a "40" EU shirt are not related at all.

Myth 4: "Letter sizes like S, M and L are universal"

Letters are the least standardized part of the system. On the converter's women's chart, every letter from S to XL covers two numeric sizes (M spans US 8 and US 10), and brands draw those lines in different places. Japanese, Chinese and Korean brands also tend to cut smaller, so someone who is a Medium in a US store often needs a Large or more from an Asian label.

If a product lists only letters, look for its measurement chart in centimeters or inches and compare it with your own numbers.

Myth 5: "A size chart gives you an exact answer"

A conversion chart, including the one in the converter, is a standard approximation. Brands adjust their cuts, some deliberately label garments smaller than the measurements suggest, and stretch fabrics fit differently from tailored ones. A chart tells you where to start; the brand's chart and the garment's measurements tell you where to finish.

How do you find your size from a measurement?

Measuring takes two minutes with a soft tape:

• Bust or chest: around the fullest part, tape level under the arms.
• Neck: around the base of the neck, with a finger's width of room.
• Waist: around your natural waist, or where you actually wear trousers.

Then use the converter:

1. Open the clothing size converter and choose Women's dresses & tops, Men's suits & jackets, Men's dress shirts or Men's trousers & jeans.
2. Type your bust, chest, neck or waist measurement into the measurement field, and set Unit to cm or in.
3. Read the result. The converter picks the smallest size that fits your measurement, so it rounds up if you're between sizes, and the row is highlighted in the full chart.

Worked examples from the chart:

• A 90 cm bust lands on the 92 cm row: Letter M, US 8, UK 12, EU 38, FR 40, IT 44, JP 11.
• A 41-inch chest rounds up to the 107 cm row: L, US/UK 42, EU/IT 52.
• A 40 cm neck rounds up to the 41 cm row: US/UK 16.
• An 84 cm waist matches US/UK 33, EU 49.

You can also convert the other way: pick a Size system and Your size from the menus to see the equivalents in every system. The lookup happens in your browser. If you're also buying shoes, the shoe size converter works the same way with foot length.

FAQ

Why does the chart round my measurement up?

Clothes that are slightly loose can be worn or altered; clothes that are too tight can't. Choosing the smallest size whose measurement is at least yours is the safer default, especially for jackets and shirt collars.

What if my measurements fall into two different sizes?

That's common, for example a chest of one size and a waist of another. Go by the measurement that matters most for the garment: chest for jackets and tops, waist for trousers, and neck for dress shirts. For inch-to-centimeter conversions outside the chart, use the length converter.

Does the chart include Japanese men's sizes?

No. Japanese sizes are listed only for women's dresses and tops. For men's clothing from Japanese brands, compare your chest or waist measurement with the brand's own chart.

Shopping abroad soon? Check your size with the clothing size converter.