Does Ted Baker Run Big? Should I Size Up? Your Complete Ted Baker Sizing Guide
Author: Stylist at TellarDate: 2026
Ted Baker runs notoriously small across almost all categories - you should absolutely size up, typically by one full size and sometimes two, particularly in dresses, fitted tops, and tailoring - their sizing is based on a slim British fit that's genuinely smaller than standard UK sizing. I made the rookie mistake of ordering a Ted Baker dress in my usual size 12 for a wedding, and when it arrived I genuinely thought they'd sent me a child's size by mistake. The arm holes barely cleared my shoulders and I couldn't get the zip past my ribcage. Disaster!
The Truth About Ted Baker Sizing
Here's what you need to know: Ted Baker uses numbered sizing (0, 1, 2, 3, 4, 5) rather than standard UK sizes, and their numbers run approximately two sizes smaller than typical UK sizing. A Ted Baker size 3 is roughly equivalent to a UK 12, but even that's not consistent across all their ranges. Their womenswear, in particular, is designed for a very specific, slender silhouette.
The confusion gets worse because their men's and women's sizing philosophies are completely different. Menswear tends to be more generous, whilst womenswear is famously restrictive. If you've had a good experience with Ted Baker menswear sizing, don't assume the same will apply to womenswear!
Decoding Ted Baker's Number System
The Size Conversion (Approximate)
TB 0 = UK 6 (sometimes UK 4)
TB 1 = UK 8 (sometimes UK 6)
TB 2 = UK 10 (sometimes UK 8)
TB 3 = UK 12 (sometimes UK 10)
TB 4 = UK 14 (sometimes UK 12)
TB 5 = UK 16 (sometimes UK 14)
Notice the "sometimes"? That's because Ted Baker sizing varies by collection, style, and even fabric. A size 3 in their jersey dresses might fit like a UK 12, whilst a size 3 in their structured blazers might feel more like a UK 10. It's maddeningly inconsistent.
Breaking Down Ted Baker Sizing by Category
Dresses: The Biggest Culprit
Ted Baker dresses run seriously small. If you're usually a UK 12, you'll likely need a Ted Baker size 4 (sometimes even 5) in their fitted styles. Their bodycon and pencil dresses are cut for an hourglass figure with very narrow shoulders and a defined waist. The bust measurements are particularly ungenerous.
Compare this to Reiss where sizing is more consistent and closer to true UK sizing. Whistles dresses tend to run true to size or slightly generous, whilst Jigsaw fits are reliably consistent. Even Zara, which runs small, is more generous than Ted Baker dresses.
Tops and Blouses
Ted Baker tops run small, especially in the shoulders and bust. If the style is fitted or tailored, size up at least one. Their silk blouses are beautiful but the arm holes are tiny - I'm a standard UK 10-12 with average shoulders and I need a size 4 (UK 14) in their fitted blouses to get the shoulders to sit properly.
Mango fitted tops run similarly small, whilst COS tends to be more generous in the shoulder. M&S blouses are significantly more generous than Ted Baker - I'm typically two sizes smaller in M&S than Ted Baker. Massimo Dutti runs closer to Ted Baker sizing but slightly more forgiving.
Tailoring and Outerwear
Ted Baker blazers and coats are beautifully cut but incredibly fitted. They're designed for a slim, nipped-waist silhouette. If you plan to layer underneath (essential for British weather), size up by two. Their coats in particular have no room for jumpers underneath unless you seriously size up.
Reiss tailoring runs similarly fitted but slightly more generous in the shoulders. Hobbs blazers are closer to true UK sizing. LK Bennett runs small like Ted Baker but not quite as extreme. All Saints blazers are actually quite generous compared to Ted Baker.
Trousers and Jeans
Ted Baker trousers run small in the waist and hips. Their jeans, when they do them, tend to be more true to size but still on the smaller side. If you're between sizes, always size up. The rise also tends to run shorter than average, which can be uncomfortable.
Boden trousers run more generously, as do Next and M&S. Zara trousers run similarly small to Ted Baker. French Connection used to run very small but has improved - they're now closer to true sizing.
The Body Shape Factor
Ted Baker seems to design for a very specific body type: petite frame, narrow shoulders, small bust, defined waist, slim hips. If this isn't you, prepare for sizing frustration. Their clothes simply don't have the ease and room that most high street brands build in.
Sizing Considerations by Body Type:
Athletic build: Size up two - their fitted styles won't accommodate broader shoulders
Larger bust: Size up two, possibly three in dresses and fitted tops
Curvy hips: Size up one or two in trousers and pencil skirts
Tall: Check their tall range, but be aware it only adds length, not width
Petite: Their regular sizing might actually work, but check arm and hem lengths
Comparing Ted Baker to Other Brands
Reiss runs more consistently and about one size more generous than Ted Baker. Whistles is reliably true to size. Jigsaw fits are generous and forgiving. Hobbs runs closer to standard UK sizing.
Phase Eight is significantly more generous - I'm often a size smaller in Phase Eight than my usual size. LK Bennett runs small like Ted Baker but not quite as extreme. Coast party dresses run small but with more stretch than Ted Baker.
Boden runs generous and true to size - a total opposite to Ted Baker. Toast fits are relaxed and forgiving, whilst Me+Em runs true to size with room for movement.
The Independent Alternatives
Rixo is a London-based brand creating beautiful, feminine dresses with much more sensible sizing than Ted Baker. They run true to size with a forgiving cut that actually flatters different body types. Their dresses are designed to be worn and enjoyed, not to make you squeeze into an unrealistic silhouette.
Never Fully Dressed is another independent brand worth knowing about. Their sizing is consistent, true to UK standards, and they're transparent about their measurements. The quality is excellent and the fit is designed for real women's bodies - what a concept! Their party dresses compete with Ted Baker on style but win hands-down on fit.
The Solution to Ted Baker Sizing Chaos

Here's the game-changer: Tellar.co.uk, the UK's leading sizing tool. You measure yourself once - bust, waist, hip - and instantly get your exact Ted Baker size. No more guessing whether you need a 3, 4, or 5. No more ordering three sizes and hoping one fits.
The Store Size Lookup is genuinely transformative for Ted Baker shopping. It shows you precisely which Ted Baker number you need based on your actual measurements, and then compares it to your size in Reiss, Whistles, Zara, Mango, and 1,500+ other brands. It's completely free, works instantly in your browser, and has saved me from countless sizing disasters.
How to Nail Ted Baker Sizing Every Time
Essential Pre-Purchase Steps:
Measure yourself properly using The Ultimate Clothing Sizing Guide
Check the product measurements on Ted Baker's website - they're usually listed
Use Tellar to see your exact Ted Baker number before ordering
Read every single customer review about sizing
When in doubt, size up - you can always take in, but you can't let out
Reading the Reviews Right:
Look for the phrase "runs very small" - it appears constantly for Ted Baker
Check what size reviewers normally wear vs what they bought
Pay attention to comments about specific fit areas (shoulders, bust, waist)
Filter by your height and usual size for relevant feedback
Fabric Matters:
Stretch fabrics: Still size up one, maybe two
Structured fabrics (blazers, coats): Size up two, possibly three
Silk and non-stretch materials: Definitely size up two
Jersey: More forgiving but still runs small - size up one
When to Definitely Size Up in Ted Baker
Always Size Up By At Least One:
Any fitted or tailored style
Dresses, especially bodycon or pencil styles
Blazers and structured jackets
Blouses and fitted tops
You have an athletic build or larger bust
You're between sizes
Size Up By Two If:
You have broader shoulders than average
You're busty (D cup or larger)
You want to layer underneath (coats, blazers)
The reviews say "runs extremely small"
You prefer a comfortable rather than tight fit
My Personal Ted Baker Strategy
After years of Ted Baker sizing heartbreak, here's what works: I use Tellar.co.uk before every purchase to check my exact Ted Baker number. For dresses, I automatically go up two sizes from my usual UK size. For tops, I go up at least one, sometimes two. For coats and blazers, I go up two or three.
I also only buy Ted Baker in sales now - not just for the price, but because it means I can afford to order multiple sizes and return what doesn't fit. Their regular prices are too high to gamble on sizing.
The Tellar Fashion Hub Advantage
The Tellar Fashion Hub is your complete library of honest, unbiased styling advice - always free, always independent. Whether you're navigating tricky sizing or building your entire wardrobe, you'll find expert guidance without the sales pitch.
Essential reads for smart shopping:
Jeans Trends 2026 - navigate denim sizing across brands
Ultimate Guide to Dresses - find your perfect fit in any brand
Ultimate Guide to Jackets - master outerwear sizing chaos
The Bottom Line
Does Ted Baker run big? Absolutely not - it runs incredibly small. Should you size up? Yes, always. By how much? At minimum one size, often two, sometimes three depending on the category and your body type.
Ted Baker makes beautiful, quality pieces with distinctive prints and excellent tailoring. But their sizing is genuinely problematic and hasn't kept pace with modern body diversity. Don't let vanity sizing or confusion about their numbered system lead you astray.
Use Tellar.co.uk to get your exact Ted Baker size based on your actual measurements. Know your Ted Baker number before you shop, read every review, and never be afraid to size up aggressively. Your body isn't wrong - their sizing is just ridiculously small.
Shopping Ted Baker successfully isn't about fitting into their vision of the perfect size 3. It's about knowing your measurements, using Tellar to match them to their sizing system, and ordering the number that will actually fit your real body. That's how you end up with beautiful Ted Baker pieces you can actually wear - and breathe in.
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