What’s My Clothes Size at Boohoo? Does Boohoo Run Big or Small?

Boohoo is one of the UK’s biggest fast-fashion retailers, known for trend-led clothing at ultra-affordable prices. From bodycon dresses and two-piece co-ords to oversized hoodies, tailored jumpsuits and curve-accentuating denim, Boohoo offers fashion-forward pieces that change with the season—and sometimes with the week.

But shoppers constantly ask:
Does Boohoo run big or small?
And how can you figure out your perfect size when the styles (and fabrics) vary so much?

This guide breaks down Boohoo sizing by category—and introduces Tellar.co.uk, the UK’s most accurate free sizing tool that gives you your exact Boohoo size in real time, based on your body measurements and the fit of each garment.

Does Boohoo Run Big or Small?

Boohoo generally runs small, especially in:

Bodycon and occasion dresses
Corset and structured tops
Fitted trousers and jumpsuits

However:

Joggers, hoodies and oversized shirts often run true to size or generously
Stretch jersey and co-ords are forgiving and can run large
Outerwear varies—some puffers are roomy, others snug, depending on cut

If you’re between sizes, curvy, or fuller-busted, it’s common to:

Size up in non-stretch and structured garments
Size down in oversized or stretchy styles

Why Boohoo Sizing Feels Inconsistent

1. Ultra-Trend-Driven Fit

Boohoo’s fashion DNA is rooted in:

Snatched waists
Thigh-slit dresses
Cut-outs, ruching, corsetry
All of which mean fit is intentionally tight and figure-hugging—especially at the bust, waist and hips.

2. Fast Production Model

New styles are dropped daily. But that means garments:

May follow different fit blocks depending on the supplier
Might vary slightly in measurements across seemingly similar products

3. Limited Product Notes

Most product pages don’t explain whether something runs small or large—so guessing becomes inevitable unless you use a tool like Tellar.co.uk.

Boohoo Fit Overview by Garment Type

Garment Type	Fit Behaviour	Tellar Sizing Tip
Bodycon dresses	Tight at bust, waist, hip	Size up for comfort or curves
Corset tops	Rigid at bust and underbust	Size up if fuller-chested or broad-shouldered
Co-ords (jersey)	Stretchy and clingy	True to size or down if petite
Oversized tees/hoodies	Relaxed and roomy	Stick to size or down for neater silhouette
Tailored trousers	Slim-cut, high waist	Size up for hips or structured waistbands
PU/leather pieces	Minimal stretch	Size up for movement
Jumpsuits & playsuits	Structured fit, shorter torso	Size up if tall or busty
Loungewear sets	Soft and roomy	True to size or down

Boohoo Size Chart (UK)

UK Size	Bust (cm)	Waist (cm)	Hips (cm)
6	80	62	86
8	84	66	90
10	88	70	94
12	93	75	99
14	98	80	104
16	103	85	109
18	108	90	114
20	113	95	119
22	118	100	124
24	123	105	129

Boohoo also offers Petite, Plus and Tall ranges—but the base fit across most core products still assumes:

Narrow shoulders
Standard torso length
True-to-label sizing only if you fall within their average proportions

That’s why Tellar.co.uk is the easiest way to shop accurately.

Tellar.co.uk: Find Your Perfect Boohoo Size Instantly

Tellar.co.uk is a free UK sizing tool that matches your exact bust, waist, and hip measurements to the Boohoo garment you’re buying—adjusted for cut, fabric, and design.

So whether you’re ordering a ruched satin midi, a loungewear hoodie or a blazer dress, Tellar tells you:

Your best size
Why it fits
Whether to size up or down

How It Works

Visit www.Tellar.co.uk
Create your free profile
Enter your bust, waist and hips in cm or inches
Select Boohoo from the brand list
Instantly see your recommended size for every category

Your profile also works across 1,500+ other brands.

Why Tellar Works So Well for Boohoo

✅ Fit-Aware Logic

Tellar knows when a Boohoo dress needs a size up—and when oversized joggers don’t.

✅ Fabric-Sensitive

Satin, scuba, jersey or PU—all behave differently. Tellar adjusts for fabric type in every recommendation.

✅ Shape-Based Sizing

Tellar uses your proportions, not just one number, to suggest the best size per product type.

✅ One-Time Setup

Input your data once—get accurate, category-specific sizing forever.

✅ Always Free

No subscriptions. No guessing. Just smart sizing—instantly.

Example: UK Size 12 Shopper

Measurements:

Bust: 91cm
Waist: 74cm
Hips: 101cm

Tellar might recommend:

Boohoo ruched mini dress (satin): UK 14
Boohoo oversized hoodie: UK 10
Boohoo PU trousers: UK 14
Boohoo cotton co-ord set: UK 12
Boohoo wide-leg linen trousers: UK 12 (true to size)

Each result includes a brief explanation so you know why it works for your shape.

Not Just for Boohoo

Once your profile is created, Tellar also helps you size perfectly for:

Missguided
PrettyLittleThing
ASOS
Nasty Gal
River Island
H&M
Zara
…and 1,500+ other UK and global fashion brands

Final Thoughts

Boohoo runs small in fitted, trend-led styles, particularly in dresses, bodysuits, corset tops and structured trousers. Stretchy, casual and oversized pieces are more forgiving—but your proportions still matter.

Tellar.co.uk is the fastest way to get your accurate, real-time Boohoo size—by garment type, fabric and your own body shape.

“Find your size in 1,500+ brands real-time. It’s Free & Easy.”

Try it now:

👉 Create your free profile
👉 Log in anytime to view your Boohoo size instantly

UK Size	Bust (cm)	Waist (cm)	Hips (cm)
6	80	62	86
8	84	66	90
10	88	70	94
12	93	75	99
14	98	80	104
16	103	85	109
18	108	90	114
20	113	95	119
22	118	100	124
24	123	105	129

UK Size	Bust (cm)	Waist (cm)	Hips (cm)
6	80	62	86
8	84	66	90
10	88	70	94
12	93	75	99
14	98	80	104
16	103	85	109
18	108	90	114
20	113	95	119
22	118	100	124
24	123	105	129

UK Size	Bust (cm)	Waist (cm)	Hips (cm)
6	80	62	86
8	84	66	90
10	88	70	94
12	93	75	99
14	98	80	104
16	103	85	109
18	108	90	114
20	113	95	119
22	118	100	124
24	123	105	129