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Fashionkilla Size Guide: What Size Am I in Fashionkilla? UK Fit Advice, Sizing Breakdown & Style Tip

Author: Stylist and brand team at Tellar

Date: 2025

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Fashionkilla is fast becoming a favourite for UK shoppers who love statement styles with a confident edge. Think bodycon dresses, sculpted two-pieces, figure-hugging sets, and bold cut-outs — all tailored for women who want their clothes to flatter, not hide.

But with styles this fitted, getting the right size in Fashionkilla is essential. From stretchy materials to sharply tailored silhouettes, sizing can shift between pieces, and many shoppers find themselves caught between sizes.

Here’s everything you need to know — including how to find your exact size in Fashionkilla using Tellar.co.uk, the UK’s leading free sizing tool for over 1,500 fashion brands.


Why Fashionkilla Sizing Can Be Hit or Miss

Fashionkilla offers standard UK sizing (6 to 16), but due to the tight-fitting nature of many of their styles, customers often report:

  • Dresses running smaller than expected

  • Two-piece sets with different top/bottom fits

  • Fabric stretch varying widely between items

  • Bust and hip measurements being more important than waist size

So even if you know your usual UK dress size, you might still wonder whether to size up — particularly in bodycon or non-stretch fabrics.

Instead of guessing, Tellar.co.uk gives you a direct answer.


Find Your Fashionkilla Size Instantly

With Tellar.co.uk, you can:

  • Enter your measurements once

  • OR select a brand you already wear well (e.g. Oh Polly, Missy Empire, PrettyLittleThing)

  • Get your ideal Fashionkilla size instantly

  • Compare sizing across over 1,500 fashion brands

It’s fast, free, and designed to save you time, money, and unnecessary returns.

🔗 Find your Fashionkilla size now


Fashionkilla Women’s Size Chart (UK Standard)

UK Size

Bust (cm)

Waist (cm)

Hips (cm)

Notes

6

80–82

60–62

86–88

Petite fit, often snug

8

83–85

63–65

89–91

Ideal for tight bodycon

10

86–89

66–69

92–95

True to UK high-street sizing

12

90–94

70–74

96–99

Good for more structured dresses

14

95–99

75–79

100–104

Check bust and hip stretch

16

100–104

80–84

105–109

Often tighter at the waist

If you’re between sizes, your bust or hips should determine which way to go — not your waist. For example, a pear-shaped figure may need to size up to fit the hips comfortably.

Need help comparing fit across brands? Use Tellar.co.uk


Fit Breakdown by Product Type

Dresses (Bodycon, Ruched, Slit-Front)

  • Very fitted through bust and hips

  • Stretchy jersey or mesh blends

  • Some styles offer double lining, making them tighter

    Fit Tip: If you want a sleek, sculpted fit, go with your normal UK size. For more comfort or taller frames, size up.

Two-Piece Sets

  • Often feature crop tops with midi or mini skirts

  • Can be mismatched for bust/hip sizes

    Fit Tip: Prioritise your larger measurement (usually hips). Consider mixing sizes if available.

Jumpsuits & Co-Ords

  • Tailored through the waist with narrow bust fit

  • Stretch varies by fabric

    Fit Tip: Go up a size if you’re tall or have a longer torso — especially in non-stretch styles.

Outerwear & Blazers

  • More relaxed, true-to-size

  • Often cropped

    Fit Tip: Stay true to size unless you want room for layering underneath.


Fashionkilla vs Other UK Brands

Here’s how Fashionkilla sizing compares to similar fashion-forward brands:

Brand

Comparison with Fashionkilla

Oh Polly

Fashionkilla is slightly more generous in hips

House of CB

Fashionkilla is less structured, more forgiving

PrettyLittleThing

Fashionkilla runs slightly tighter overall

Missy Empire

Very similar — but Fashionkilla is longer in the body

Boohoo

Fashionkilla is more fitted and less flexible in sizing

Still unsure which way to go? Let Tellar.co.uk decide


Real Users Say...

“I always ordered size 8s but half of them never fit right. Tellar showed me that for bodycon styles, I should actually be going with a 10 in Fashionkilla. Total game changer.”

“Now I use Tellar for everything — especially when buying tight-fit dresses or tops with underbust seams.”

You can join thousands of users who use Tellar.co.uk to match their size perfectly across brands like Fashionkilla, Oh Polly, and Zara.


Related Posts You Might Like


Want Your Fit Right the First Time?

Fashionkilla pieces are meant to flatter your shape — but only if they actually fit. Skip the trial and error. Let Tellar.co.uk guide you based on your own body measurements or sizing history.

It’s free to use. You’ll:

  • See your Fashionkilla fit in seconds

  • Compare sizing across 1,500+ brands

  • Save your profile for future shopping

Start now: www.tellar.co.uk


Follow Tellar.co.uk for New Drops & Sizing Tips


Final Word: Fashionkilla Deserves Precision Fit

Whether it’s for a night out, holiday, or bold everyday looks — Fashionkilla makes a statement. Don’t let the wrong size ruin it.

With Tellar.co.uk, you can wear every piece the way it was designed to be worn: fitted, flattering, and fearless.

Find your size in 1,500+ brands real-time. It’s free & easy.


Fashionkilla is fast becoming a favourite for UK shoppers who love statement styles with a confident edge. Think bodycon dresses, sculpted two-pieces, figure-hugging sets, and bold cut-outs — all tailored for women who want their clothes to flatter, not hide.

But with styles this fitted, getting the right size in Fashionkilla is essential. From stretchy materials to sharply tailored silhouettes, sizing can shift between pieces, and many shoppers find themselves caught between sizes.

Here’s everything you need to know — including how to find your exact size in Fashionkilla using Tellar.co.uk, the UK’s leading free sizing tool for over 1,500 fashion brands.


Why Fashionkilla Sizing Can Be Hit or Miss

Fashionkilla offers standard UK sizing (6 to 16), but due to the tight-fitting nature of many of their styles, customers often report:

  • Dresses running smaller than expected

  • Two-piece sets with different top/bottom fits

  • Fabric stretch varying widely between items

  • Bust and hip measurements being more important than waist size

So even if you know your usual UK dress size, you might still wonder whether to size up — particularly in bodycon or non-stretch fabrics.

Instead of guessing, Tellar.co.uk gives you a direct answer.


Find Your Fashionkilla Size Instantly

With Tellar.co.uk, you can:

  • Enter your measurements once

  • OR select a brand you already wear well (e.g. Oh Polly, Missy Empire, PrettyLittleThing)

  • Get your ideal Fashionkilla size instantly

  • Compare sizing across over 1,500 fashion brands

It’s fast, free, and designed to save you time, money, and unnecessary returns.

🔗 Find your Fashionkilla size now


Fashionkilla Women’s Size Chart (UK Standard)

UK Size

Bust (cm)

Waist (cm)

Hips (cm)

Notes

6

80–82

60–62

86–88

Petite fit, often snug

8

83–85

63–65

89–91

Ideal for tight bodycon

10

86–89

66–69

92–95

True to UK high-street sizing

12

90–94

70–74

96–99

Good for more structured dresses

14

95–99

75–79

100–104

Check bust and hip stretch

16

100–104

80–84

105–109

Often tighter at the waist

If you’re between sizes, your bust or hips should determine which way to go — not your waist. For example, a pear-shaped figure may need to size up to fit the hips comfortably.

Need help comparing fit across brands? Use Tellar.co.uk


Fit Breakdown by Product Type

Dresses (Bodycon, Ruched, Slit-Front)

  • Very fitted through bust and hips

  • Stretchy jersey or mesh blends

  • Some styles offer double lining, making them tighter

    Fit Tip: If you want a sleek, sculpted fit, go with your normal UK size. For more comfort or taller frames, size up.

Two-Piece Sets

  • Often feature crop tops with midi or mini skirts

  • Can be mismatched for bust/hip sizes

    Fit Tip: Prioritise your larger measurement (usually hips). Consider mixing sizes if available.

Jumpsuits & Co-Ords

  • Tailored through the waist with narrow bust fit

  • Stretch varies by fabric

    Fit Tip: Go up a size if you’re tall or have a longer torso — especially in non-stretch styles.

Outerwear & Blazers

  • More relaxed, true-to-size

  • Often cropped

    Fit Tip: Stay true to size unless you want room for layering underneath.


Fashionkilla vs Other UK Brands

Here’s how Fashionkilla sizing compares to similar fashion-forward brands:

Brand

Comparison with Fashionkilla

Oh Polly

Fashionkilla is slightly more generous in hips

House of CB

Fashionkilla is less structured, more forgiving

PrettyLittleThing

Fashionkilla runs slightly tighter overall

Missy Empire

Very similar — but Fashionkilla is longer in the body

Boohoo

Fashionkilla is more fitted and less flexible in sizing

Still unsure which way to go? Let Tellar.co.uk decide


Real Users Say...

“I always ordered size 8s but half of them never fit right. Tellar showed me that for bodycon styles, I should actually be going with a 10 in Fashionkilla. Total game changer.”

“Now I use Tellar for everything — especially when buying tight-fit dresses or tops with underbust seams.”

You can join thousands of users who use Tellar.co.uk to match their size perfectly across brands like Fashionkilla, Oh Polly, and Zara.


Related Posts You Might Like


Want Your Fit Right the First Time?

Fashionkilla pieces are meant to flatter your shape — but only if they actually fit. Skip the trial and error. Let Tellar.co.uk guide you based on your own body measurements or sizing history.

It’s free to use. You’ll:

  • See your Fashionkilla fit in seconds

  • Compare sizing across 1,500+ brands

  • Save your profile for future shopping

Start now: www.tellar.co.uk


Follow Tellar.co.uk for New Drops & Sizing Tips


Final Word: Fashionkilla Deserves Precision Fit

Whether it’s for a night out, holiday, or bold everyday looks — Fashionkilla makes a statement. Don’t let the wrong size ruin it.

With Tellar.co.uk, you can wear every piece the way it was designed to be worn: fitted, flattering, and fearless.

Find your size in 1,500+ brands real-time. It’s free & easy.