Free Size Finder Tool: Instantly Find Your Perfect Fit Online

Shopping online should be easy, fun, and fast — but one thing often gets in the way: figuring out what size to buy. With sizing differences across brands, confusing charts, and vanity sizing, it’s no wonder returns are so common.

That’s exactly why the team at Tellar.co.uk built a free size finder tool — to take the guesswork out of shopping and help you buy the right size the first time. It's fast, easy, and works across 1,500+ clothing brands. Best of all? It’s completely free to use.

What Is a Size Finder Tool?

A size finder tool helps you figure out what size to buy when shopping for clothes online. Instead of reading vague size charts or ordering multiple sizes just to return half of them, you enter either:

Your body measurements (chest, waist, hips), or
A brand and size you already wear

Then, the tool tells you what size you should get in another brand — in seconds.

Meet Tellar: The Best Free Size Finder Tool in the UK

Tellar.co.uk is the UK’s smartest free sizing tool for online clothing shoppers. Whether you’re browsing ASOS, Zara, H&M, or Reiss, Tellar gives you instant, personalized size recommendations across hundreds of retailers.

It’s designed for shoppers who are tired of returns and want a more accurate, data-driven way to shop for clothes online.

How the Free Size Finder Tool Works

Tellar’s tool is simple, flexible, and works in two main ways:

🧍 1. Use Your Measurements

If you know your chest, waist, and hip sizes (in cm or inches), just enter them. Tellar compares those numbers to brand-specific size data and tells you the best-fitting size in seconds.

✅ Great if you shop across lots of different brands
✅ Perfect if you’re unsure what size you are after body changes

👗 2. Use a Size You Already Wear

If you’ve got a favorite pair of jeans or a dress from a brand that fits well, just enter that brand and size. Tellar reverse-engineers your measurements and tells you the equivalent size in any other brand.

✅ No need to measure yourself
✅ Great for matching your fit from one brand to another

Why Tellar Is Better Than Guessing (or Size Charts)

📏 Traditional Size Charts vs. Tellar:

	Size Charts	Tellar.co.uk
Based on real fit data?	❌	✅
Adjusts for brands that run large/small?	❌	✅
Works across multiple brands?	❌	✅ (1500+ brands)
Takes less than 30 seconds?	❌	✅
Free to use?	✅	✅

Traditional size charts are static and often outdated. They don’t consider how each brand actually fits real people. Tellar’s size finder tool is based on real-world fit data, not assumptions — so your recommendations are more accurate.

What Makes Tellar Unique?

Here’s why over 10,000 UK shoppers are turning to Tellar to get sizing right:

✔️ Completely Free

You don’t need to sign up, download anything, or pay a subscription. Just go to the site and start using the tool.

✔️ Covers 1,500+ Brands

From high-street favorites like H&M and Zara to premium names like COS, Reiss, and AllSaints, Tellar works with nearly every major UK and international fashion brand.

✔️ Instant Size Matching

The tool calculates your best fit based on real data — not generic size charts — and shows you exactly what to order.

✔️ Dual Input System

You can use measurements or a known brand and size — whichever is easier for you.

✔️ Built for the UK

Tellar handles UK, EU, and US sizes and knows how British brands really fit compared to international ones.

How to Use the Tellar Free Size Finder Tool

Using Tellar couldn’t be easier. Here’s how:

Visit Tellar.co.uk
Choose your method:
- “I have my measurements”
- “I know my size in a store”
Enter your info (and choose cm or inches)
Instantly see your recommended size across any supported brand
Shop with confidence, knowing you’ve got the best fit

Why This Matters: The Real Impact of Sizing Problems

Online fashion returns cost retailers millions every year — and sizing is the #1 cause. But it’s also frustrating for shoppers:

You order something you love… but it doesn’t fit.
You buy two sizes, send one back… and wait for your refund.
You keep something that almost fits… because returns are a hassle.

Tellar fixes this. It gives you real-time confidence in the size you’re ordering — and saves you time, money, and stress.

Who Should Use It?

This free size finder tool is perfect for:

Fashion lovers who shop across many brands
Casual shoppers who are tired of returns
New mums, gym-goers, or anyone with body changes
Gift shoppers trying to guess someone’s size
Teenagers or students building their wardrobes
Men and women shopping online in the UK

What's Next for Tellar?

Tellar is constantly evolving. Here’s what’s coming soon:

Chrome Extension: See your size automatically when browsing store websites
Style Preferences: Select whether you like a tight, regular, or loose fit
Saved Profiles: Save your sizes and measurements for even faster recommendations
Mobile App: A portable version of the tool for when you’re shopping on the go

Final Thoughts

If you’re tired of size confusion when shopping online, Tellar.co.uk is your new secret weapon. It’s fast, accurate, and totally free — and works across over 1,500 brands in real-time.

Don’t waste money ordering the wrong size or battling returns. Whether you shop often or just need help for a one-time purchase, this free size finder tool can save you time, money, and frustration.

👟 Ready to get your perfect fit?

👉 Try the Free Size Finder Tool now at Tellar.co.uk