Wedding Dress Sizes: Why the Number on the Label Doesn’t Matter
Many brides can get hung up on the number inside the dress, when really — it shouldn’t be a big deal at all. Want to know why? Most wedding gowns aren’t true to size. Yep, you read that right. In fact, bridal gowns typically run one to two sizes smaller than what you’d find on the high street.
Let’s say you’re usually a UK size 12. You might feel surprised — or even a bit offended — if a bridal consultant hands you a size 16 gown. But you really don’t need to stress. The number on the label means nothing compared to how you look and feel in the dress. And guess what? Nobody else is going to see that label anyway.
In this blog, we’ll walk you through everything you need to know about wedding dress sizing — from the quirky history of bridal sizes to how to measure yourself properly, and what to expect at your fittings. We’ll even cover plus-size considerations, international conversions, and tips for finding the most flattering fit for your body shape.
A Brief History of Bridal Sizing
Fashion changes all the time — trends from decades ago resurface, reimagined with a modern twist. But the bridal industry? It holds onto tradition a little more tightly.
Many of the most prominent bridal designers come from Europe or the US, and their size charts have historically been smaller than UK brands. Combine that with the fact that each designer uses its own custom pattern blocks and measurements, and it’s no surprise that bridal sizing often feels like it’s from another planet.
So, don’t panic if the number on your wedding gown doesn’t match what you’re used to wearing. It’s not you — it’s the chart.
Why Wedding Dresses Run Small
There are a few reasons for this sizing difference:
Historical Standards: Bridal designers often use older, traditional sizing models that haven’t been updated in decades.
Precision Fit: Gowns are designed to be altered to your body, so they’re created to be taken in, not let out.
Vanity Sizing Doesn’t Apply: Streetwear brands often inflate sizes to make customers feel better. Bridal designers typically don’t.
How to Measure Yourself for a Wedding Dress
If you’re buying from a bridal shop or online, get your hands on the designer’s specific size chart. Each one is slightly different, so measurements are key.
Here’s what you’ll need to measure:
Bust (at the fullest point)
Waist (the narrowest part of your torso)
Hips (the widest part of your lower half)
Always measure in inches or centimetres using a flexible measuring tape. If you’re between sizes, go for the larger size — it’s much easier to take a dress in than to let it out.
Pro tip: Get a friend to help, or book a local seamstress for the most accurate measurements. Some online bridal brands even offer virtual fitting tools — use them if available.
Size Guides:
UK, US & European Size Chart Comparison
Since many gowns are designed abroad, knowing your international size equivalents can be helpful.
Note: Some designers may vary slightly, so always check their individual chart.
Tips for Trying On Dresses
Wear the right undergarments: If you plan to wear shapewear or a specific bra on your wedding day, bring them to your fitting.
Match your heel height: Try dresses on with shoes that are the same height as what you’ll wear on the big day.
Let the stylist guide you: Bridal stylists know each designer's quirks inside and out. Trust their sizing recommendations and be open to trying sizes that might surprise you.
Alterations: What Can Be Changed?
Most wedding dresses are designed to be altered. A skilled seamstress can typically:
Take a dress in by up to two sizes
Let a dress out by one size (at most)
Adjust straps, hems, bust support, and more
Order a size that fits your current body, not your “goal weight.” Dresses are much easier to take in than to let out, and crash dieting isn’t worth the stress.
Sizing Advice for Every Body
For Plus-Size Brides:
Look for designers that offer extended size ranges or specialise in curve collections.
Don’t settle for limited sample sizes — some shops will happily order specific samples for you to try.
For Petite Brides:
Pay attention to bodice length and proportion. Look for designers who offer petite sizing, or factor in alterations for a proper fit.
For Every Body Shape:
A-line and empire silhouettes flatter most figures.
Mermaid and trumpet styles suit hourglass shapes.
Ballgowns highlight waists and create balance for pear-shaped brides.
Sustainability and Sizing
Sample dresses often go unworn or unused. Choosing a made-to-order gown or shopping from eco-conscious designers helps reduce waste.
Bonus: made-to-order dresses are more likely to fit your measurements with fewer alterations needed.
Final Thoughts
So there you have it — your ultimate guide to wedding gown sizing. Remember, the number inside your dress isn’t nearly as important as how it makes you feel. Your wedding day is about celebrating you, not a label.
Whether you're a size 6 or a size 26, there is a dream dress out there that will fit and flatter your unique shape. Trust your stylist, know your measurements, and focus on the magic of the moment.
Now go say yes to the dress — whatever the number on the tag says.
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