How to find your size in a changing buyers world to Online shopping

In the golden age of online shopping, one issue continues to frustrate millions of consumers worldwide: finding the right clothing size. Each brand seems to have its own rules. A “medium” in one store is a “large” in another. Shopping across borders? Even trickier. And don’t get us started on vanity sizing.

If you’ve ever added three sizes of the same item to your cart just to be sure, this article is for you. Let’s break down the chaos, and more importantly—show you how Tellar.co.uk is bringing clarity to your wardrobe.

The Sizing Crisis in Online Retail

Brands Don’t Agree on Sizing

One of the core problems is that there is no universal sizing standard. What fits in Zara might not fit in Mango. A UK size 10 in one label could be a size 12 in another, and in some cases, a 14 if the brand runs particularly small.

This leaves customers asking:

“What size am I really?”

The answer? You’re not a number. You’re a set of measurements.

Why Measuring Yourself Matters More Than Ever

In a digital-first shopping world, knowing your chest, waist, and hip measurements is more useful than knowing your “usual” size. And with Tellar.co.uk, you only need to do it once.

Don’t Have a Measuring Tape?

We’ve got you. Download our free, printable measuring tape, cut it out, and follow our simple guide. You can also log your numbers securely in your Tellar profile and update them anytime.

Why Sizes Vary So Widely

1. Vanity Sizing

Many high street and designer brands use “vanity sizing” to flatter buyers. That means:

The actual garment is larger than the label suggests.
You end up thinking you’re a size 8 when your body measurements align with a 10 or 12.

While it might feel good in the moment, this trick creates huge problems when shopping across brands or countries.

2. Global Discrepancies

Shopping across borders is easier than ever—but that doesn’t mean sizes match:

UK 10 ≠ US 6 ≠ EU 38
Even within the same country, fit standards vary wildly.

Tellar.co.uk translates this messy landscape into clear, data-driven recommendations. Just enter your body measurements or a known size from a favourite store, and we’ll do the rest.

👉 Try our Store Size Lookup Tool to instantly see your best size across hundreds of stores.

The Problem With Generic Size Charts

Most retailer size charts are overly simplified. Worse, they:

Use static charts that don’t adjust to your proportions
Omit key measurements like shoulder width or garment length
Fail to mention whether a garment runs large, small, or true to size

At Tellar.co.uk, we use real-world fitting data and user feedback to give you size suggestions that actually work.

Meet Tellar.co.uk: The UK’s Leading Sizing Tool

We built Tellar.co.uk to simplify online shopping for everyone. Whether you wear size 6 or 26, are tall, short, curvy or athletic—Tellar works for you.

Here’s how:

1. Create Your Profile

Head over to our Login / Profile page. You’ll be prompted to either:

Enter your body measurements (chest, waist, hips)
Or choose your size in a store you know fits well

From there, we’ll calculate your universal fit across hundreds of brands.

2. Use the Store Lookup

Looking to buy from a specific retailer? Use our Store Size Lookup to:

Type in the store name (predictive text makes it easy)
Instantly get your best-fitting size in that brand
View the size chart in your preferred unit (CM or Inches)

No more guesswork. Just results.

3. Update Anytime

Bodies change. Seasons change. So should your sizing data.

Your Tellar profile lets you update your measurements, unit preference, and known brand sizes at any time from your account dashboard.

Sizing Tech Is Getting Smarter—Are You?

The online marketplace is evolving fast. Leading fashion retailers are investing in sizing tech that includes:

3D body scanning
Virtual try-ons
Fit prediction based on purchase history

But these are often limited to their own brand. That’s where Tellar.co.uk stands out.

We work across brands, countries, and sizing systems—so you can shop anywhere with confidence.

What If the Store You Want Isn’t Listed?

No problem.

If you search for a store and see the message:

“Oops, sorry we don’t have that brand yet! But we will get it for you. Check back soon!”

…then you’re helping us grow. We log these searches and add new stores based on real customer demand. You can also contact us directly if there’s a specific brand you’d like added.

5 Expert Tips for Online Sizing Success

Always use your measurements—not just size labels.
Update your body data regularly. Even a few cm can change your recommended size.
Stick to one measurement system. (We support both cm and inches—just select your preference in your profile).
Look for “runs small” or “runs large” notes. Our store lookup tool includes this intel.
Use your past purchases wisely. Tellar can estimate measurements from a known brand size to give you a starting point.

What Makes Tellar.co.uk Different?

✅ Supports men’s and women’s wear
✅ Works across hundreds of UK and global stores
✅ Converts between CM and Inches
✅ Offers a free printable measuring tape
✅ Stores your data securely with profile login
✅ Constantly expands based on real user demand

Whether you’re shopping ASOS, Nike, H&M, Boohoo, or a boutique indie label—we’ve got your size.

What’s Next for Sizing Tech?

Tellar.co.uk is evolving too. Here’s what we’re working on behind the scenes:

Mobile app for even faster size lookup
Visual avatars that reflect your real measurements
Wardrobe integration for managing fits across your closet
Fit ratings from real users to help guide others

Start Shopping Smarter—Today

If you’re tired of:

Buying multiple sizes just to return two
Feeling frustrated or confused by vague size charts
Wasting time measuring every item with a tape measure…

…it’s time for a smarter way.

👉 Create your free Tellar profile now
👉 Find your size in your favourite brands
👉 Download your printable measuring tape

With Tellar, your size is just the start. The confidence to wear what fits? That’s the future.

Tellar