How Do I Find My Size When Buying Clothes Online?

Finding your size online doesn’t need to be a guessing game. Here’s a step-by-step process to help you order the right fit — every time.

1. Measure Your Body Accurately

Start with your key body measurements, using a soft measuring tape:

Bust/Chest – Around the fullest part
Waist – The narrowest point
Hips – Around the widest part of your bottom

You can also tellar.co.uk if you don’t have one.

2. Use a Size Matching Tool

Instead of looking at dozens of size charts, Tellar.co.uk compares your exact body measurements to the sizing charts of over 1,500 brands — including Zara, H&M, Mango, M&S, Reiss and more.

Just enter your measurements once
Instantly see your recommended size for each brand
Save your profile for faster checks in future

👉 Try it now – it’s free and takes 30 seconds

3. Understand the Brand’s Fit Style

Check if the brand runs small or large. For example:

Zara often runs small
White Stuff and Next tend to run large
COS uses oversized cuts

Tools like Tellar.co.uk account for these differences automatically.

What If I’m Between Sizes?

Being in between sizes is common. Here’s how to choose:

✅ Check the Fit Type

If the garment is tight-fitting (e.g. a bodycon dress or skinny jeans), size up for comfort.
If it’s looser or stretchable (e.g. an oversized jumper or jersey top), you can size down.

✅ Read Product Descriptions

Look for notes like:

“Runs small – we recommend sizing up”
“Generous fit”
“Fits true to size”

✅ Use Tellar’s Size Logic

Tellar always bases your recommendation on your largest measurement and compares that to each brand’s unique sizing data. So if your waist is a 12 and hips are a 14, Tellar will recommend the size that fits your widest point — avoiding returns and poor fit.

Save Time, Avoid Returns

With Tellar.co.uk, you don’t have to second-guess or order three sizes "just in case."

You get a real-time recommendation, based on your body, your brands.

Try it free now:

➡️ tellar.co.uk

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