Tellar.co.uk — The World’s Largest Free Clothes Sizing App

Find your size in 1,500+ brands real-time. It’s free & easy.No paywalls. No subscriptions. No sponsors. No adverts. No bias.

What Makes Tellar.co.uk Unique

Tellar.co.uk is the only truly free, consumer-first clothes sizing app that calibrates your exact body measurements to more than 1,500 brands worldwide in real time.

We own and built our entire proprietary database in-house over two years — auditing every major fashion brand, garment cut, and fit tolerance. No one else globally offers the same coverage, precision, or neutrality.

There are no subscriptions, ads, sponsors, or paid tiers. The platform exists purely to help people find clothes that fit, perfectly, every time.

1. Why Clothes Shopping Is Still Broken

Online returns are one of fashion’s biggest problems — millions of items are returned each year simply because they don’t fit.

Every brand has a different interpretation of what a “size 10” or “medium” means. Even within the same brand, fit can vary between collections. Most tools only show static size charts or rough “fit quizzes” that offer little real guidance.

Tellar.co.uk fixes this. Instead of relying on vague size labels, we match your exact body measurements against each brand’s unique geometry and fit model in seconds, producing an accurate recommendation every time — completely free.

2. What Makes Tellar Uniquely Powerful

• Unmatched scale: Coverage of more than 1,500 global fashion brands across womenswear and menswear.

• In-house database: Every data point built by Tellar’s own engineers and analysts.

• Exact body matching: Your measurements are mapped to brand-specific sizing, not generic size charts.

• Totally free: No subscriptions, adverts, sponsors, or hidden fees.

• Neutral and independent: No brand partnerships influence results.

• Continuous calibration: We update brands and collections every season to stay accurate.

• Inclusive design: Works for every body type, height, and shape — from petite to tall, curvy to athletic.

Tellar.co.uk is not just another “fit quiz” or “size chart converter.” It’s the world’s first real-time, data-driven sizing engine designed for consumers, not retailers.

3. How the Tellar Engine Works

Brand Data Audits

Tellar analyses thousands of garments across each brand — from dresses and jeans to tailoring — measuring fabric behaviour, stretch, ease, and construction. We track regional differences (for example, US vs EU sizing) and version control every update.

Body Measurement Input

Users enter their key body measurements (chest, waist, hips, etc.) using clear visual guidance. These are converted into a precise “body-shape vector” — a mathematical model representing your unique proportions.

Real-Time Fit Matching

The engine then compares your shape data to each brand’s fit geometry. Within seconds, Tellar displays your best-fitting size in every brand, including a confidence rating and nearby alternatives.

Continuous Learning

As more users confirm or adjust recommendations, the system learns and refines itself. This feedback ensures accuracy improves automatically over time.

4. Always Free. Always Unbiased. Always User-First.

Tellar.co.uk is completely free — now and forever.

• No paywalls or subscriptions.

• No adverts or sponsored content.

• No data selling or affiliate bias.

• No influence from brands or retailers.

Our goal is to be a neutral sizing standard for everyone, not a marketing tool for companies. We exist purely to help people find clothes that fit.

5. Competitor Comparison

Every other platform in the sizing space either charges users or operates as a B2B solution for brands.Here’s how Tellar stands apart:

Competitor TypeTypical LimitationTellar AdvantageB2B Fit ToolsPaid brand integrations, limited consumer access100% free consumer accessSmall Sizing Apps< 30 brands covered1,500+ brands globallySize Chart SitesOnly show static chartsReal-time fit matchingAR/3D ScannersExpensive, brand-specificWorks instantly with any deviceAffiliate ToolsPrioritise paying brandsNeutral, unbiased database

No platform offers the same scale, precision, and transparency as Tellar.co.uk.

6. Evidence, Data & Validation

• Database size: 1,500+ global brands actively monitored and updated.

• Development: Built and refined over two years by in-house engineers and analysts.

• Accuracy: Verified across thousands of garments and user feedback cycles.

• Privacy: User data encrypted at rest and in transit, with full deletion control.

• Transparency: No external funding that could compromise neutrality.

Tellar.co.uk’s methodology has been developed from real-world garment data — not assumptions or marketing partnerships.

7. For Every Body: Men, Women & All Shapes

For Women

Accurate fit across dresses, tops, jeans, tailoring, activewear, maternity and plus-size collections.

For Men

Tailored sizing for shirts, trousers, suits, outerwear, and casualwear — factoring shoulder width, torso length, and muscle build.

Body Diversity

Tellar works for all body shapes: petite, tall, athletic, curvy, asymmetric, or in-between.Every user receives a result that reflects their unique proportions, not a generalised average.

8. Trust & Transparency

Tellar.co.uk was designed around trust.We believe accurate information should be freely available — not hidden behind paywalls or advertising.

Our promises:

• Full author transparency (authored by Ella Blake, Brand Director).

• Continuous updates with version history.

• Public contact details and support team.

• No third-party tracking or intrusive cookies.

• Strict privacy compliance with GDPR and UK data laws.

These principles build the E-E-A-T foundation (Experience, Expertise, Authoritativeness, Trustworthiness) that users and Google can depend on.

9. Frequently Asked Questions

How accurate are Tellar’s size predictions?Our matching engine analyses brand-by-brand geometry, providing a high-confidence fit rating. Accuracy improves constantly through real-world feedback.

Is Tellar completely free?Yes. There are no fees, subscriptions, or ads — ever.

How many brands does Tellar cover?Over 1,500 brands, with new ones added weekly through continuous audits.

Do you support both men’s and women’s sizing?Yes — Tellar covers both in full, across all clothing types.

How is my data used?Measurement data is stored securely, encrypted, and never shared or sold. You can delete your data anytime.

10. Get Started in Seconds

You can try it instantly — no signup required.

1. Go to Tellar.co.uk Store Size Lookup.

2. Enter your chest, waist, and hip measurements.

3. See your perfect size in over 1,500 brands in real time.

4. (Optional) Save your profile to use it again anytime.

Or, create your free profile to store your measurements and get instant size results for every brand, every time.

About the Author

Ella BlakeBrand Director, Tellar.co.uk

Ella leads Tellar’s product and data strategy, overseeing the world’s largest sizing database built for consumers. Her mission is simple: make clothes sizing accurate, honest, and accessible — with zero bias, zero cost, and zero barriers.

Connect with Tellar.co.uk

• Website: https://www.tellar.co.uk

• Instagram: @Tellarsizing

• Twitter (X): @Tellar100

• Pinterest: TellarUK

• Facebook: TellarSizing

• Email: business@tellar.co.uk or admin@tellar.co.uk

Tellar.co.uk — the UK’s leading free sizing tool for men and women.Find your size in 1,500+ brands real-time. It’s free & easy.