Clothing Size Calculator – Easily Convert International Sizes (EU, US, UK…)

Find Your Right Size When Buying Clothes in Any Country

Are you confused by clothing sizes when shopping online at foreign stores or while traveling? We know that a “Medium” in one brand may not be the same in another, and that numerical sizes vary greatly between Europe (EU), the United States (US), the United Kingdom (UK), and other countries. Our Clothing Size Conversion Calculator is here to help you decipher these differences and find the equivalent size you need.

With our tool:

✅ Quickly convert sizes between different systems (EU, US, UK, JP, International S/M/L, etc.).

✅ Find equivalents for different types of clothing: dresses, pants, shirts, shoes, and more, for men, women, and children.

✅ Buy clothes online or abroad with more confidence and reduce the risk of returns.

Use our calculator now and say goodbye to the confusion of international sizes.

Example of Conversion with the Clothing Size Calculator

Imagine you live in Europe and wear a size 40 dress (EU size). You want to buy a dress from an American (US) brand online. What US size should you look for?

Data for conversion:

• Garment Type: Dress
• System of Origin: EU
• Known Size: 40
• Destination System: US

Using the Calculator:

Select "Dress," then "EU," enter "40," and finally choose "US" as the destination size. The calculator will consult its conversion tables.

📊 Result: EU size 40 for dresses is generally equivalent to a US size 10.

This means you should look for a size 10 in the US online store. It's that easy to find your equivalent size!

Important: Sizes may vary slightly between brands. If possible, always refer to the retailer's specific size guide.

📢 Find your correct international size in seconds with our calculator.

How Does Our Size Conversion Calculator Work?

Our tool makes finding your equivalent size a simple four-step process:

Step 1: Choose the Type of Garment and Gender

👚👞 Select the clothing category for which you need the conversion (e.g. Men's Shirt, Women's Shoes, Children's Pants, General Adult Size).

Why is it important? Conversion tables are different for each type of garment (a shoe size of 40 is not the same as a pants size of 40) and also vary between men, women, and children.

Step 2: Indicate your Current Sizing System

🌍 Choose the sizing system for the country or region where you know your size (e.g. EU – Europe, US – United States, UK – United Kingdom, JP – Japan, IT – Italy, AU – Australia, or International – S, M, L, XL).

Why is it important? This is the starting point for conversion.

Step 3: Enter your Known Size

🔢 Enter or select the specific size you normally wear in the source system you chose (e.g. 38, 12, M, 27cm).

Why is it important? It is the specific value that the calculator needs to find its equivalent.

Step 4: Select the Destination System and Convert

✅ Choose the sizing system for the country or region where you want to find your equivalent size (e.g., if you know your EU size and want a US size, select US). Press the convert button. The calculator will show you the most likely size in your target system.

🔹 Use this equivalent size as a guide when purchasing.

🔹 If the result shows a range (e.g. S/M) or two sizes close together, consider your preferred fit (looser or tighter).

📢 Ready to buy that international brand? Make sure you get the right size first!

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What is the Clothing Size Conversion Calculator?

The Clothing Size Calculator (or Converter) is a digital tool designed to translate clothing and footwear sizes between the different measurement systems used around the world.

Solve the common problem of confusion and errors when purchasing international brand clothing or traveling, due to the lack of a single global sizing standard.

It works by consulting databases or equivalence tables that list sizes from different countries (such as EU, US, UK, Japan, etc.) for various types of clothing (pants, dresses, shirts, shoes) and categories (men, women, children).

Its usefulness lies in providing a quick and easy reference for consumers to choose the most appropriate size when faced with an unfamiliar sizing system.

It is important to remember that this is based on general equivalencies, and variations between brands are always possible.

👉 Shop more safely and avoid the frustration of receiving the wrong size.

Recommended books on fashion, style, and smart shopping

Although there are not many specific books on size conversionThese titles can give you a better understanding of the fashion world and how to shop smarter:

1️⃣ The Curated Closet: A Simple System for Discovering Your Personal Style and Building Your Dream Wardrobe – Anuschka Rees

Tea1 It helps define your personal style and build a functional wardrobe, which indirectly makes you more aware of the clothes that fit you well and makes choosing sizes easier.

2️⃣ Overdressed: The Shockingly High Cost of Cheap Fashion – Elizabeth L. Cline

An analysis of the fast fashion industry that will make you reflect on your purchasing habits and the importance of quality versus quantity, which influences how you choose clothes and sizes.

3️⃣ Fashionpedia: The Visual Dictionary of Fashion Design – Fashionary

An incredible visual encyclopedia detailing clothing types, cuts, materials, and fashion terms. A better understanding of garments can help you interpret sizing guides.

Why Use Our Size Conversion Calculator?

Our tool is your best ally to navigate the world of international sizes:

• ✅ Shop Online and Travel Without Worries – Quickly find the equivalent size you need in foreign stores or while traveling.
• ✅ Reduce Errors and Returns – Increases the likelihood of choosing the right size the first time, saving time and money.
• ✅ Wide Coverage – Includes the most important sizing systems (EU, US, UK, JP, etc.) and various types of garments.
• ✅ Easy and Quick to Use – Intuitive interface to get the conversion in seconds.

Avoid These Common Mistakes When Choosing Sizes

Even with a converter, be careful with these points:

• 🚫 Assume Consistency Across Brands – Sizing can vary significantly from brand to brand, even within the same country. A “M” from Zara is not the same as a “M” from Gap!
• 🚫 Not Considering the Specific Garment Type – Your t-shirt size isn't necessarily the same as your pants or shoe size. Use the correct category in the converter.
• 🚫 Forgetting the Importance of Your Body Measurements – The most reliable way to ensure a good fit is to take your measurements (bust, waist, hips, foot length in cm/inches) and compare them to the brand-specific sizing guide.

Use our calculator as a great starting guide, but whenever possible, compare it with your measurements and the brand's chart.

Comparison: Size Converter vs. Lookup Tables or Guess

Why use our centralized tool?

• ✅ All in One Place – Avoid having to search for multiple conversion charts scattered across the internet for different garments or countries.
• ✅ Speed and Convenience – Get the equivalency instantly without navigating through confusing pages.
• ✅ Less Risk Than Guessing – Significantly reduces the likelihood of error compared to simply choosing a size at random or based on a guess.
• ✅ Standardized Interface – Easy to use and understand, regardless of the conversion you need to perform.

Simplify your international shopping with our size conversion tool.

Frequently Asked Questions about the Size Conversion Calculator

How to convert clothing sizes easily?

The easiest way is to use our Size Conversion Calculator. Simply select the garment type, your current sizing system (e.g., EU), your known size (e.g., 42), and the system you want to convert to (e.g., US). The tool will show you the most likely equivalent size.

What is this size converter for?

It helps you find the correct clothing or footwear size when faced with sizing systems that are different from what you're used to. This is especially useful when shopping online at international stores or traveling internationally. It makes choosing easier and reduces the risk of buying the wrong size.

Are clothing sizes very different between the EU and US?

Yes, they can be quite different, and the difference varies depending on the type of garment and whether it's for men or women. For example, a women's size 38 in the US is usually a size 8 in the US for dresses/blouses, but a shoe size 38 in the US is around a 7.5-8 in the US. That's why it's helpful to use a specific converter.

Practical example of size conversion

If a man wears a Medium (M) shirt size in the international system and wants to know his approximate European (EU) shirt size, the calculator might indicate that an M is approximately equivalent to an EU size 39/40.

Which countries or sizing systems does the calculator cover?

Our calculator generally covers the most widely used systems internationally:

• EU: European Union (common in Spain, France, Germany, etc.)
• US: USA
• UK: United Kingdom
• JP: Japan
• ITEM: Italy (sometimes different from the general EU)
• AU: Australia
• International: S, M, L, XL…
• Sometimes it also includes measurements in cm or inches.

How can I know my size if I don't know any reference size?

The best way is to take your body measurements with a tape measure:

• Chest/Bust: Measure around the widest part.
• Waist: Measure around the narrowest part of your natural waist.
• Hip: Measure around the widest part of your hips.
• Foot Length: Measure your foot from heel to toe (in cm or inches) for shoes. Then, compare these measurements to the specific size chart for the brand you're interested in.

Can children's clothing sizes also be converted?

Yes, our calculator typically includes categories for children's clothing and footwear, as their sizing systems also vary internationally (e.g., sizes by age, height in cm, or specific number systems like US Toddler/Kids, EU, etc.).

What do I do if my size appears to be between two numbers in the conversion?

It's common. Consider your preferred fit (tighter or looser) and the type of garment. Read product reviews if possible, as other buyers sometimes comment on whether a garment runs large or small. If you're in serious doubt, it's sometimes safer to choose the slightly larger size.

Are the brands' own size charts always reliable?

They are the most direct reference of that specific brand, so they're generally more reliable than generic conversion charts. However, even within a brand, different cuts or styles may fit differently. Reading reviews and knowing your measurements is still key.

Is there really a “universal” or global standard size?

Unfortunately, no. Although the International system (S, M, L, etc.) attempts to be a global reference, the interpretation of which measurements correspond to each letter varies between brands and countries. There is no single, mandatory global standard for numerical sizes.

Have more questions about sizing? Use our calculator now and shop with greater confidence.