To find your right size in every shop, you need a tool that does three key things:

✅ 1. Uses your actual body measurements

Not weight. Not height. Just the numbers that actually matter for fit:

  • Bust/Chest

  • Waist

  • Hips

✅ 2. Compares these to each brand’s actual size chart

Every clothing brand uses different measurements—even for the same labelled size. That’s why a size 10 at Zara can be tighter than a size 8 at Whistles. You need a system that knows this.

✅ 3. Shows the best size for you, in real time, for each store

This means one profile = personalised sizing in 1,500+ brands instantly.


The Easiest Way to Do This:

Use Tellar.co.uk

Here’s how it works:

  1. Go to https://www.tellar.co.uk/create-profile/

  2. Enter your chest, waist, and hip measurements (in cm or inches)

  3. Tellar stores your profile securely (one-time setup)

  4. Whenever you visit the store size lookup page, you’ll see your perfect size in that brand—based on how they actually cut their clothing.

🟢 Try it now


Bonus: No Guesswork

Tellar also tells you if a brand:

  • Runs small, true to size, or large

  • Offers petite, tall or curve options

  • Is better suited to your proportions


If you want to shop confidently across brands like Zara, Reiss, Whistles, H&M, Mango, ASOS and 1,500+ more, Tellar.co.uk is the tool to use.

No app download needed. No fees. Just your perfect fit.