Find Your Correct Clothes Size in Every Brand

Why Sizing Is So Inconsistent Across Fashion Brands

Clothing size inconsistency is one of the most frustrating experiences for online shoppers. You might be a size 10 in Zara, a size 8 in H&M, and a size 12 in COS — all with the same body. This issue isn’t just anecdotal; it’s systemic. Sizing varies significantly between brands, countries, and even within the same brand across collections. Here's why:

No universal standard: Unlike shoe sizes, which are relatively consistent, clothing brands set their own sizing standards. There is no global measurement framework brands are required to follow.
Vanity sizing: Many fashion brands downsize their labels to appeal to customers psychologically. For example, a 30-inch waist might be labelled as a size 10 in one brand and a size 8 in another.
Target demographic variation: Brands design for specific customer bases. A brand targeting teenagers will cut its sizes differently than a brand aimed at mature women.
Country of origin: UK, US, EU, and Asian sizes all differ. A UK size 10 is not the same as a US size 10 or EU size 38. This can be even more confusing when shopping on global sites like ASOS or Farfetch.

Measurement vs. Label: Why Knowing Your Body Measurements Matters

Relying solely on label sizes is unreliable. A far more accurate method is to use your own body measurements — typically chest, waist, and hips — and compare them to each brand’s size chart. However, this isn't always straightforward:

Brand size charts are hidden or inconsistent
Measurement units (cm/inches) differ
Some brands don't publish full size charts

This creates a major barrier for shoppers, especially online. That’s where Tellar.co.uk comes in.

Tellar.co.uk: Match Your Body to the Right Size in Over 1,500 Brands

Tellar.co.uk is the UK’s leading free sizing tool, designed to solve the chaos of inconsistent clothing sizes. Whether you're shopping from high street favourites like Zara, Next, or H&M, or designer labels like Reiss, Sezane, or Ganni, Tellar shows you your correct size based on your actual measurements, not just a guess.

🔍 How It Works

Take 3 measurements: Your chest, waist and hips — in either cm or inches.
Create a free profile at https://www.tellar.co.uk/create-profile/
Tellar instantly compares your measurements against size charts for over 1,500 brands, giving you your best-matching size.
If you already know your size in one brand, Tellar can use that to reverse-engineer your measurements and match you across other labels.

🎯 Instant Real-Time Results

Unlike other sizing platforms that require manual searches or pop-ups, Tellar gives you real-time results instantly — no log-in required to check a store’s sizing advice via the Store Size Lookup Tool.

Features That Make Tellar.co.uk Different

✅ Covers Boutique, Designer and High-Street Brands

Tellar doesn’t just focus on fast fashion. The tool includes luxury and independent labels like Rixo, The Fold, Me+Em, COS, and Whistles — making it invaluable whether you're shopping on ASOS or Net-a-Porter.

✅ Dual Measurement Units (CM or Inches)

Choose your preferred measurement unit with a simple click. Tellar supports both centimetres and inches, and the entire interface updates accordingly.

✅ UK-Focused with Global Relevance

While Tellar is built for the UK sizing market, it adapts international sizing (e.g. EU, US, AU) behind the scenes, so global shoppers can benefit too.

✅ One-Time Setup

Once you’ve entered your measurements once, your profile is saved securely. You can always log in to update them later. Start here: Create Your Free Profile

Why Tellar.co.uk Works When Others Fail

Most size tools only work on specific websites. They use popup overlays that don't always load correctly, or they rely on user-entered reviews that are inconsistent. Tellar, by contrast:

Standardises all brand size charts in its own database
Applies a consistent sizing algorithm to match you
Lets you preview size advice before you buy
Requires no browser extension or plugin installation

With one profile, Tellar empowers you to shop confidently across Zara, Massimo Dutti, Mango, Uniqlo, Boden, White Stuff, and hundreds more.

Common Questions About Tellar.co.uk

❓Is it really free?

Yes — It’s Free & Easy. Tellar was built to remove the barriers to finding your correct clothes size. No credit card, no subscription, just accuracy.

❓Do I have to input my measurements every time?

No. Your profile stores them, and you can return any time to get updated recommendations. You can even log in and update your sizes manually here: Log In to Update Measurements

❓Can Tellar recommend sizes if I don’t know my measurements?

Yes. If you know your size in a specific brand (e.g. “I’m a size 10 in Zara”), Tellar can estimate your measurements and apply them to other brands. You can try that flow directly on the login page: Tellar Profile Login

Try It Now — Free & Accurate Sizing in Seconds

Don't buy clothes in the wrong size ever again. Whether you're shopping for a summer wardrobe, a tailored blazer, or occasion wear, Tellar.co.uk makes sure you’re buying the right size first time. No more returns. No more frustration. Just accurate, data-backed recommendations.

👉 Create your free profile here

👉 Or explore the Store Size Lookup for instant answers.

Connect with Tellar.co.uk

Stay updated with brand sizing tips, new store additions, and fitting insights across your favourite platforms:

Instagram: @Tellarsizing
Twitter (X): @TellarSizing
Pinterest: https://www.pinterest.co.uk/TellarUK
Facebook: https://www.facebook.com/TellarSizing

Final Thought: Don't Trust the Label, Trust the Fit

Clothing labels are not a guarantee — they're a suggestion. Your fit should be based on your body, not the brand’s best guess. Tellar.co.uk is here to make that process instant, intelligent, and effortless.

🟢 Start using Tellar now – it takes less than a minute and it’s completely free.