How Do I Know My Clothing Size in Different Brands?

Clothing sizes vary dramatically between brands — sometimes even within the same store. If you’ve ever bought a size 10 in one shop and needed a size 14 in another, you’re not alone. The question, “How do I know my clothing size in different brands?” is one of the most searched by online shoppers in the UK.

In this post, we break down why sizing differences exist, and how to find your correct size across over 1,500 brands — with tools and data that actually work.

✅ Why Clothing Sizes Vary Between Brands

Most brands develop their own size charts using unique fit models and manufacturing specs. This creates inconsistencies such as:

A size 12 in Zara might be closer to a UK 10 in ASOS
Vanity sizing in some brands means you appear to wear a smaller size
US, EU, and UK systems follow different measurements entirely

These differences make shopping confusing and increase the risk of returns — especially when buying online.

📏 How to Accurately Find Your Size

The only way to confidently shop across brands is by using your actual body measurements, not your usual clothing size. The key measurements are:

Chest/Bust: Around the fullest part of your chest
Waist: Around your natural waistline
Hips: Around the widest point of your hips

Using these measurements, you can match your body to each brand’s official sizing data — or use a tool that does it all for you.

🛠️ Tellar.co.uk: Your Sizing Solution

Tellar.co.uk is the UK’s most accurate size-matching tool. It takes your chest, waist and hip measurements and tells you your best-fitting size in over 1,500 brands, including:

Zara
ASOS
H&M
Mango
Boohoo
& more

Tellar uses brand-verified size charts — not averages or assumptions — and works in both cm and inches.

👤 How It Works

Create your free Tellar profile
Enter your measurements (chest, waist, hips)
Choose your preferred unit (cm or inches)
Use the Store Size Lookup Tool to instantly find your best size in any brand

🧠 Already Know Your Size in One Brand?

Tellar also works in reverse. If you know your size in Zara or ASOS, just select the store and size — and Tellar will estimate your equivalent in other stores using their verified data.

👉 Try the Store-Based Profile Creation if you already shop a specific brand.

🛒 Why This Matters

Knowing your true clothing size across brands:

Reduces returns and refunds
Improves your confidence when shopping
Saves time and money
Works for both men and women

🔗 Stay Connected with Tellar

📣 Final Takeaway

If you're asking, “How do I know my clothing size in different brands?” — the answer is to stop guessing and start measuring.

Let Tellar.co.uk do the work. It’s accurate, free, and designed for real-world sizing — not fashion industry guesswork.

🎯 Start Now (It’s Free)

✅ Use the size lookup tool
📬 Request a free measuring tape
🔒 No login required to check your size — but profiles are free to create if you want to save your details