A complete guide to getting the perfect jeans fit—with help from Tellar.co.uk

A complete guide to getting the perfect fit—with help from Tellar.co.uk

Finding your jeans size shouldn’t be a mystery—but with different sizing systems, vanity sizing, and inconsistent fits across brands, it’s no wonder so many people get it wrong. Whether you’re shopping for skinny jeans, wide-legs, or flares, the key to success is knowing your measurements—and matching them to the brand’s actual size chart.

Here’s how to do it properly—and how Tellar.co.uk makes it instant, free, and stress-free.

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🔹 Step 1: Take 3 Essential Body Measurements

To get your correct jeans size, you’ll need:

1. Waist – Measure around the narrowest part of your natural waist

2. Hips – Measure around the widest part of your hips and bottom

3. Inseam (optional) – Measure from the top of your inner thigh to the bottom of your ankle (useful for leg length)

📌 Tip: Use a soft measuring tape, and stand straight with feet hip-width apart. Don’t suck in—accuracy is key.

No tape? You can download a free printable measuring tape from Tellar.co.uk here:

🔗 www.tellar.co.uk/create-profile

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🔹 Step 2: Know What Unit You’re Working In (CM or IN)

Some brands use centimetres, others use inches. Some use UK sizes (10, 12, 14), while others use waist-based sizing (e.g. W30 L32). To avoid conversion mistakes:

• Take your measurements in both inches and centimetres

• Use Tellar to toggle between the two instantly when checking your size

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🔹 Step 3: Understand the Brand’s Size Chart

Here’s the problem: every brand has a different idea of what a "size 12" or "W30" means. Even within the same brand, different styles (e.g. high-rise vs low-rise) can fit differently.

Examples:

• Zara jeans often run small through the hips

• M&S jeans are generous around the waist

• River Island jeans tend to be tight in non-stretch styles

That’s why generic size charts don’t work. You need brand-specific fit information.

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🔹 Step 4: Use Tellar.co.uk to Match Your Body to 1,500+ Brands

Tellar.co.uk is the UK’s leading free clothing sizing tool. It compares your body measurements to the real sizing data from over 1,500 brands, and tells you exactly what size you are in each one.

How it works:

1. Enter your waist, hips, and chest measurements

2. Or select a brand + size you already know fits

3. Choose the store you want to shop in

4. See your perfect size instantly, including whether that brand runs small or large

5. Works in real-time, for all major brands including Zara, Reiss, Mango, M&S, ASOS, and more

🔗 Check your jeans size now

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🔹 Step 5: Account for Style, Cut, and Fabric

Even with the correct waist and hip size, some jean styles fit differently:

• Stretch jeans: These offer flexibility—choose your exact size or size down if unsure

• 100% cotton (rigid denim): No give—consider sizing up

• Low-rise styles: Fit lower on your hips—hip measurement is more important than waist

• Flared or wide-leg jeans: Make sure the waist is snug, since the legs are roomier

Tellar takes all of this into account when recommending sizes—especially helpful when shopping unfamiliar cuts.

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🔹 Step 6: Use a Known Size If You Don’t Have Measurements

No measuring tape to hand? No problem.

Tellar also lets you estimate your measurements based on a size you already wear in a shop that fits well. For example:

• Tellar will use your size 16 in M&S to estimate what size you are in Zara

• Or convert your W32 in Levi’s into your best match in Massimo Dutti or River Island

🔗 Try the “I know my size in a brand” tool

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Why Guessing Doesn’t Work

Most returns happen because shoppers guessed their size using:

• Brand charts that aren’t accurate

• Clothes that were resized or vanity-labelled

• Hips and waists that don’t match standard proportions

• Sizing that changes between jeans, trousers, and tops

Tellar fixes this by using actual brand measurements, not vague size ranges. It’s tailored to your body—not the label.

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✔️ Tellar.co.uk: Your Free Real-Time Sizing Tool

✅ Works with over 1,500 UK and international brands

✅ Matches your body to real brand data

✅ Supports cm/inches, waist/hip/UK sizing systems

✅ No downloads, no subscriptions—just accurate results

✅ Helps you avoid returns and bad buys

✅ Totally free, one-time setup

🔗 Create your free Tellar profile now

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Summary: Find Your Jeans Size the Smart Way

1. Measure your waist and hips accurately

2. Convert between cm/inches if needed

3. Don’t rely on brand charts—use real data

4. Use Tellar.co.uk to find your size in any brand instantly

5. Enjoy denim that fits you—first time, every time

Tellar.co.uk – Find your jeans size in 1,500+ brands real-time. It’s Free & Easy.

🔗 Start now