"I Finally Stopped Guessing My Clothing Size — Here's How"

"I Finally Stopped Guessing My Clothing Size — Here's How"

I don’t know about you, but shopping for clothes used to fill me with mild dread.

I’m not talking about the kind of dread where you’re overwhelmed by choices (although let’s be honest, that happens too). I’m talking about that sinking feeling when you spot something you love, only to think: What size am I in this brand?

Because honestly—who knows anymore?

The Size 10 That Wasn’t

A few months ago, I ordered a stunning navy linen dress from a French brand I found online. I’m a UK 10, or at least that’s what I thought. But when the parcel arrived, the dress barely made it past my shoulders.

At first, I panicked—have I grown overnight? Then I remembered this wasn’t the first time this had happened. The same thing occurred with a Mango blouse (labelled EU 38), and before that, a Zara jacket that fit more like a UK 6.

Everywhere I looked, sizing seemed to change. I’d go from a Medium in one store to a Large in another. Sometimes even an Extra Small, bizarrely. It wasn’t just frustrating—it was confusing and frankly demoralising.

I started to wonder: Is there actually a way to figure this out?

The Reality of Global Sizing Confusion

Shopping globally sounds glamorous until you have to decode the numbers on the labels.

UK sizing uses even numbers—8, 10, 12, and so on.

US sizing is generally two sizes up—a US 6 is usually a UK 10.

EU sizing throws numbers like 36, 38, and 40 into the mix.

And then brands like COS, Massimo Dutti and Abercrombie seem to make up their own rules.

I’d tried using online conversion charts. I even downloaded a PDF from a fashion blog claiming to explain it all. Spoiler alert: it didn’t. I still ended up ordering the wrong size three out of five times.

It wasn’t just the waste of money—it was the waste of time, the returns, and the sheer energy spent trying to figure it all out.

That’s when I stumbled across Tellar.co.uk.

How I Found Tellar.co.uk

I saw a post on Pinterest that said:

"Never check a size chart again. Find your size in 1,500+ brands. Free, real-time sizing tool."

That sounded too good to be true. But I clicked.

The homepage was clean and to the point: "Find your size in 1,500+ brands real-time. It’s Free & Easy." That “free” part caught my attention.

I was asked to either enter my measurements or select a brand and size I already knew fit me well. Since I didn’t have a tape measure handy, I went with the second option—“I’m a Medium in Zara”.

Within seconds, Tellar generated a set of measurements based on that info. It showed me how that Zara Medium translated into different brands—Abercrombie, White Stuff, H&M, Massimo Dutti. The size matches were eerily accurate to what I had previously discovered by trial and error—but this time, it was all laid out clearly.

Better still, I could save my profile with a one-time login (no password faff), and return to it whenever I needed. I bookmarked it immediately.

🟩 Create your own profile here

Later: I Measured Myself Properly

A week later, I went back to Tellar.co.uk—this time ready to do it properly. I downloaded their free printable measuring tape, printed it off, cut it out, and followed the how-to-measure guide.

I measured:

Bust: 90cm

Waist: 73cm

Hips: 95cm

Once I entered these, Tellar recalculated my sizes across different brands. That’s when things got interesting.

The Results: No More Guesswork

With just those three numbers, Tellar told me:

In Zara, I’m typically a Medium, but should size up to Large for fitted shirts.

In Massimo Dutti, I’m an EU 40 in trousers but EU 38 in knits.

In White Stuff, I’m a true UK 10, sometimes 12 depending on style.

In Abercrombie, I should go for a US 8 in dresses but stick to Medium for tees.

Every brand’s nuance was accounted for—and that was the game-changer.

🟩 Try the size lookup tool now

Why It Matters

It’s not just about convenience. Accurate sizing means:

Fewer returns

Less wasted time

Less money lost on delivery costs

More confidence when you click “Buy Now”

Plus, there's a sustainability aspect too. Returns = repackaging, fuel, waste. Sizing correctly the first time helps reduce the impact.

Is Tellar.co.uk Really Free?

Yes. I’ve used it dozens of times now. There are no hidden charges. No email spam. No credit card required. You can either check your size as a guest or save your profile with a simple email login.

And the best bit? You only have to measure yourself once.

Tellar vs Other Tools

I’ve tried size calculators before. Many just offer vague conversion charts or base your fit on what other users “say” fits them. That’s risky.

Tellar.co.uk is different because:

It uses your actual body measurements

It understands brand-specific sizing

It covers UK, US, and EU brands

It’s clean, fast and accurate

And yes—it’s completely free

Staying Updated

Since discovering Tellar, I’ve followed them on social media for new updates, style guides and helpful content:

Instagram: @Tellarsizing

Pinterest: TellarUK

Facebook: TellarSizing

Twitter: @Tellar100

They regularly share helpful tips on fit, sizing quirks, and what’s new in their database.

Final Thoughts: The End of Sizing Confusion

I used to guess my size in every brand. Now, I don’t.

Tellar has genuinely changed the way I shop—not just online, but in-store too. If I try something on and it doesn’t fit, I can check the brand in Tellar, compare it to what I’m wearing, and understand instantly why it fits differently.

It’s not magic. It’s just smart tech.

So if you're tired of returning clothes, wasting money, or standing in the changing room wondering if you’ve grown a dress size in a week—give Tellar.co.uk a try.

🟩 Find your real size here

🟩 Download the free measuring tape

🟩 Create your free profile

Trust me—it’s worth it.