The Best Online Shops to buy Plus Size Formal Dresses

(Featuring Our Fave: Hello Curve)

Shopping for a plus size formal dress online can be a bit of a mission, right? You need something that suits properly, flatters your body, appears top notch—and does not cost a small fortune. Whether it is a marriage you are attending, a work event, gala, or even a fancy dinner, you deserve to feel confident and comfortable in what you put on.

To save you the scrolling, I’ve put together a list of the best online stores that actually get plus size formal dresses. These shops offer flattering fits, stylish designs, and sizes that go beyond the usual 14–16 cut-off. And yes—Hello Curve is right at the top of the list. If you haven’t heard of them yet, you’re in for a treat.

🛍 Top Online Stores for Plus Size Formal Dresses (Comparison Table)

💕 1. Hello Curve – Best for Stylish, Comfortable Formalwear

Let’s start with our fave—Hello Curve. If you’re in Australia (or even if you’re not), this one’s a must-visit. Their entire range is designed specifically for plus size women, and it shows. You’ll find dresses that flatter your shape without squeezing or drowning you, in beautiful prints and colours that actually feel elevated. In particular, they have a big and elegant range of plus size wedding guest dresses.

The best part? So many of their dresses have stretch, adjustable details, and thoughtful tailoring. You won’t feel like you’re “making it work”—you’ll actually feel good as is.

Why we love them:

• Inclusive sizing (up to AU 30+)
  
  

• Styles that balance comfort and polish
  
  

• Designed for curvy women, not just sized-up
  
  

• Ships worldwide

What to watch out for:

• Popular sizes do sell out fast
  
  

• Smaller range than big global retailers
  
  

✨ 2. ASOS Curve – Best for Variety & On-Trend Pieces

ASOS Curve is a bit of a wonderland. Whether you want something minimalist or extra, floaty or fitted, they’ve got it. They stock their own Curve line, plus lots of other labels under one roof—so it’s easy to compare styles and find what works for you.

Prices are truthful, and their filters make it easy to discover your size. Plus, client critiques (with photographs!) are super helpful for figuring out if something runs small or huge.

What’s great:

• Huge range of formal options
  
  

• Regular sales and promos
  
  

• Reviews and real-life pics are a lifesaver
  
  

What’s not so great:

• Quality can vary depending on the brand
  
  

• Fit can be hit or miss, so check the reviews
  
  

💃 3. City Chic – Best for Glamorous, Statement Dresses

If you love a little drama (the fashion kind!), City Chic is your girl. Regularly featuring deep colours and dress cuts that are highly flattering for formal wear, this brand knows what works for curves. You'll find lots of stylish plus size wrap dresses, sleeved options and empire waist styles here.  

City Chic also has stores across Australia, so if you want to try things on before buying, that’s a big win.

Why we rate them:

• Designed for curvier shapes
  
  

• High quality, durable fabrics
  
  

• Occasional in-store sales for extra savings
  
  

Downsides:

• On the pricier side
  
  

• Not as many low-key or subtle options
  
  

🌸 4. Forever New Curve – Best for Soft, Romantic Looks

Forever New’s Curve series feels like it is made for lawn weddings, brunches, and soft sunset pics. Their attire is highly feminine, with flowing fabrics, smooth prints, and that dreamy vibe that simply feels a bit unique. 

The size variety is quite small (going up to AU 22), however if you fall within that bracket and love soft, romantic patterns, it’s worth a look.

Pros:

• Beautiful attention to detail
  
  

• Perfect for softer, more delicate looks
  
  

• Pieces you’ll actually wear again
  
  

Cons:

• Smaller sizing range
  
  

• Styles tend to run a bit narrow in the bust/waist
  
  

🔥 5. Fashion Nova Curve – Best for Bold, Body-Hugging Styles

Fashion Nova Curve is all about that wow factor. Their dresses are sexy, dramatic, and very figure-hugging—so if you’re feeling yourself and want to show it off, this is your spot.

You’ll find everything from sequin gowns to sleek bodycons. And the prices? Surprisingly affordable.

Why people love it:

• So many styles and colours
  
  

• Perfect for evening events, parties, and date nights
  
  

• Often has big sales
  
  

Heads up:

• Fabric quality can be hit or miss
  
  

• Sizing can be inconsistent—read those reviews!
  
  

🎉 A Few Other Great Options

• Showpo Curve: Great for bridal parties, semi-formals, or trendy events. Their plus size range is smaller than their main line, but super cute.
  
  

• Kiyonna: A US-based brand that only makes plus size dresses. The fit is fantastic, especially for formal or professional events.
  
  

• Boohoo Curve: Cheap and chic. Great in case you want a last-minute dress on a low price band, though quality can range.
  
  

👗 Final Tips for Shopping Online

Before you hit add to cart, here are a few tips to make sure you get something you’ll actually love:

• Measure yourself to choose sizes—brands vary in sizes.
  
  

• Make use of return policies—try before you decide.
  
  

• Look for accommodating styles (like wrap dresses). If choosing close fitting dress styles like the cheongsam, select those crafted from stretchy fabric.
  
  

• Zoom in on the fabric—is it stretchy? Sheer? Structured?
  
  

• Read the reviews, especially the ones with photos!
  
  

🥂 Wrapping It Up

The truth is, there’s never been a better time to be plus size and shopping for formalwear. There are finally brands out there designing clothes that don’t just fit—but flatter and celebrate your shape. And at the top of that list? Hello Curve.

If you want lovely clothes that feel like they have been made just for you, give them a try. But don’t be afraid to check out the various options too—because all ladies deserve to feel extraordinary in what they wear, particularly whilst it’s a special event.

Happy purchasing! 💃