Zara vs H&M vs ASOS: Which Brand's Sizing Actually Fits You?

Zara vs H&M vs ASOS: Which Brand's Sizing Actually Fits You?

If you’ve ever ordered the same size from Zara, H&M, and ASOS — and had three completely different results — you’re not imagining things. Clothing sizes across high street brands are wildly inconsistent, leaving shoppers confused, frustrated, and stuck in return queues.

At Tellar.co.uk, we’ve built a free tool that helps you find your best-fitting size in dozens of fashion brands. Instead of guessing, our system uses your body measurements to show exactly which size you’ll be in each store — and whether that brand runs small, large or true to size.

In this post, we break down how three of the UK’s most popular brands — Zara, H&M, and ASOS — differ in their sizing, what body types they cater to, and how Tellar.co.uk can help you avoid the hassle and shop with confidence.

👚 Why Sizing Varies So Much Between Brands

Each high street fashion brand creates its own unique sizing chart. There’s no UK-wide standard — so while you might buy a "UK 12" from three different brands, each one is based on different body measurements.

Here’s why sizing is so inconsistent:

No regulation: Brands are free to define their own size charts.
Vanity sizing: Some labels make their sizes appear smaller to flatter customers.
Different body shapes: Brands design for different silhouettes (e.g. petite, tall, hourglass).
Global differences: UK, US, EU, and Asian sizes are all different systems.

🧵 Brand 1: Zara

🔍 Overview:

Zara is one of the most stylish high street brands, known for structured tailoring and trend-led designs. But it’s also notoriously inconsistent when it comes to sizing.

📏 Zara’s Size Chart (UK 12):

Bust: 92 cm
Waist: 74 cm
Hips: 98 cm

⚠️ Fit Notes:

Runs small, especially in blazers, trousers, and formal dresses.
Tailored to slim, narrow frames — can feel tight if you're curvier or broad-shouldered.

✔️ Tellar Tip: If you're using Tellar.co.uk, we’ll show whether you need to size up in Zara based on your body, not guesswork.

👚 Brand 2: H&M

🔍 Overview:

H&M is loved for its affordability and wide variety of styles — but their sizing can swing from generous to unpredictable.

📏 H&M’s Size Chart (UK 12):

Bust: 96 cm
Waist: 78 cm
Hips: 102 cm

⚠️ Fit Notes:

H&M often runs slightly large, especially in casualwear and knitwear.
Different departments (e.g. “Divided” vs “Basics”) use different measurements.

✔️ Tellar Tip: On Tellar.co.uk, we’ve mapped out H&M’s collections so you get a more precise recommendation — not just a generic size.

👗 Brand 3: ASOS

🔍 Overview:

ASOS offers a huge range of styles and inclusive sizing with dedicated Petite, Curve, and Tall collections.

📏 ASOS’s Size Chart (UK 12):

Bust: 96 cm
Waist: 78 cm
Hips: 102 cm

⚠️ Fit Notes:

Generally true to size
More forgiving fabrics — but sizing may vary depending on the brand they stock (ASOS Design vs other labels)

✔️ Tellar Tip: On Tellar.co.uk, you can compare your measurements against ASOS, Zara, H&M, and more — side by side — and get an exact recommendation.

📊 Size Comparison: UK 12 Across Brands

Brand	Bust (cm)	Waist (cm)	Hips (cm)	Fit Tendency
Zara	92	74	98	Runs Small
H&M	96	78	102	Runs Big
ASOS	96	78	102	True to Size

So even if you measure consistently as a UK 12, each brand interprets it differently.

🧠 Confused? That’s exactly why we created Tellar.co.uk.

🔍 Example: Let’s Match a Real Body

Say your measurements are:

Bust: 94 cm
Waist: 76 cm
Hips: 100 cm

What Tellar.co.uk Tells You:

Brand	Best Fit Size	Fit Advice
Zara	14	Runs small
H&M	12	Slightly roomy
ASOS	12	True to size

You didn’t have to scroll through three size charts. Tellar did it all in seconds, using actual data from brand size tables and your body measurements.

🤯 Why Guessing Doesn’t Work

Many women buy two or three sizes and return the ones that don’t fit. This:

Wastes time
Kills confidence
Creates huge environmental waste
Costs you money in return shipping or missed deals

Tellar.co.uk puts a stop to this by doing the size research for you.

✅ How Tellar.co.uk Works (Step-by-Step)

Enter your body measurements (bust, waist, hips)
Choose the brand or store you want to shop
Get a clear recommended size for that brand
See how it runs (small, big, true to size)
Optionally save your profile for faster use next time

You can also search by brand to find out your best fit before buying anything online.

👉 Try it now: Find your size

🛍️ Bonus: Discover Brands That Fit You

At Tellar, we’re mapping how brands fit real women — not models. So if you’re tall and athletic, or petite with curves, we’ll help you find the brands that naturally fit your body — not ones you have to squeeze into or size up for.

🌍 Bonus Benefit: Less Waste, More Sustainability

Returns due to sizing mistakes create:

400 million kg of CO₂ annually in the UK alone
Wasted packaging and fuel
Clothing that can’t always be resold

Using Tellar reduces return rates — which is better for your wardrobe and the planet.

📌 Final Thoughts

The truth is: a “UK 12” doesn’t mean much unless you know which brand you’re buying from. Zara, H&M, and ASOS all size their clothes differently — but that doesn’t mean you have to guess.

Tellar.co.uk removes the uncertainty.

Just enter your measurements once and get accurate, brand-specific size recommendations every time you shop.

No more guesswork. No more returns. Just clothes that actually fit.

👉 Start now – it’s free

Would you like this as a downloadable Word doc or ready-to-paste HTML/WordPress block?

You said:

add URLs to Tellar.co.uk (How to measure page and free measuring tape), Store look up page. Home login page

ChatGPT said:

Here’s the final revised blog post with embedded URLs to key pages on Tellar.co.uk, including:

✅ Store Size Lookup Tool
📏 How to Measure Yourself page
🎁 Free Measuring Tape page
🔐 Home/Login page

Zara vs H&M vs ASOS: Which Brand's Sizing Actually Fits You?

In this post, we break down how three of the UK’s most popular brands — Zara, H&M, and ASOS — differ in their sizing, what body types they cater to, and how Tellar.co.uk can help you avoid the hassle and shop with confidence.

👚 Why Sizing Varies So Much Between Brands

Here’s why sizing is so inconsistent:

No regulation: Brands are free to define their own size charts.
Vanity sizing: Some labels make their sizes appear smaller to flatter customers.
Different body shapes: Brands design for different silhouettes (e.g. petite, tall, hourglass).
Global differences: UK, US, EU, and Asian sizes are all different systems.

🧵 Brand 1: Zara

🔍 Overview:

Zara is one of the most stylish high street brands, known for structured tailoring and trend-led designs. But it’s also notoriously inconsistent when it comes to sizing.

📏 Zara’s Size Chart (UK 12):

Bust: 92 cm
Waist: 74 cm
Hips: 98 cm

⚠️ Fit Notes:

Runs small, especially in blazers, trousers, and formal dresses.
Tailored to slim, narrow frames — can feel tight if you're curvier or broad-shouldered.

✔️ Tellar Tip: If you're using Tellar’s Store Lookup Tool, we’ll show whether you need to size up in Zara based on your body — not guesswork.

👚 Brand 2: H&M

🔍 Overview:

H&M is loved for its affordability and wide variety of styles — but their sizing can swing from generous to unpredictable.

📏 H&M’s Size Chart (UK 12):

Bust: 96 cm
Waist: 78 cm
Hips: 102 cm

⚠️ Fit Notes:

H&M often runs slightly large, especially in casualwear and knitwear.
Different departments (e.g. “Divided” vs “Basics”) use different measurements.

✔️ Tellar Tip: On Tellar’s Size Lookup Tool, we’ve mapped out H&M’s collections so you get a more precise recommendation — not just a generic size.

👗 Brand 3: ASOS

🔍 Overview:

ASOS offers a huge range of styles and inclusive sizing with dedicated Petite, Curve, and Tall collections.

📏 ASOS’s Size Chart (UK 12):

Bust: 96 cm
Waist: 78 cm
Hips: 102 cm

⚠️ Fit Notes:

Generally true to size
More forgiving fabrics — but sizing may vary depending on the brand they stock (ASOS Design vs other labels)

✔️ Tellar Tip: On Tellar.co.uk, you can compare your measurements against ASOS, Zara, H&M, and more — side by side — and get an exact recommendation.

📊 Size Comparison: UK 12 Across Brands

Brand	Bust (cm)	Waist (cm)	Hips (cm)	Fit Tendency
Zara	92	74	98	Runs Small
H&M	96	78	102	Runs Big
ASOS	96	78	102	True to Size

🔍 Example: Let’s Match a Real Body

Say your measurements are:

Bust: 94 cm
Waist: 76 cm
Hips: 100 cm

What Tellar Tells You:

Brand	Best Fit Size	Fit Advice
Zara	14	Runs small
H&M	12	Slightly roomy
ASOS	12	True to size

✅ How Tellar.co.uk Works

Tellar.co.uk is free to use and works like this:

Enter your body measurements (bust, waist, hips)
Select a brand — like Zara, H&M, ASOS
Get a clear recommended size
See how it runs (small/large/true to size)
Save your profile for future use via the Login Page

You can also visit the How to Measure Yourself page for a full step-by-step guide, including diagrams and a link to order a Free Measuring Tape.

🛍️ Shop Smarter, Not Harder

Instead of ordering multiple sizes and guessing what might fit, use Tellar’s Size Lookup Tool to check your size before you buy.

You'll:

Save time and money
Avoid returns
Shop with confidence across any store

🌱 Bonus: Help the Environment

Returns caused by sizing confusion create:

CO₂ emissions from shipping
Packaging waste
Clothing that ends up unsold or discarded

Tellar.co.uk helps reduce waste by helping you buy only what fits.

🎯 Final Takeaway

A UK size 12 doesn’t mean the same thing at Zara, H&M, and ASOS. But now, you don’t have to guess.

Tellar.co.uk does the sizing work for you — comparing your body to real brand charts and recommending your ideal fit.

👉 Start here: Find Your Size

📏 Need help? Visit: How to Measure Yourself

🎁 Don’t have a tape? We’ll send you one free

🔐 Already registered? Log In to Your Profile

No more returns. No more size stress. Just confidence, comfort, and clothes that actually fit.