Mètre ruban qui indique les centimètres et les pouces pour mesurer le tour de poitrine.

Bra Size UK: Guide to Measuring and Choosing

Written by: Laetitia Lanteri

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Published on

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Last updated on

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Time to read 6 min

Lost in online or foreign bra sizes? You are not alone! Decoding international sizes, such as the English or European size, is no fun. But don't panic: with simple tips to measure your bust and a well-used conversion chart, finding perfectly fitting lingerie becomes child's play. Discover how to easily choose your UK bra size and say goodbye to sizing mistakes!

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How to measure your bra size?

Before you can navigate between sizes, it is essential to know your exact measurements. For this, you only need a flexible tape measure. Measuring your size correctly will help you determine the right band size and the right cup size.

  1. Measure your band size: Place the tape measure just under your bust, where the band of the bra rests. This measurement in centimeters corresponds to your band size.
  2. Measure your bust: Position the tape measure around the widest part of your bust. Make sure the tape is horizontal and not too tight.

The difference between these two measurements determines the cup size based on your bust measurement. You can use our automatic size calculator below to do the calculation for you!

Measurement guide

How do I take my measurements?

Measure directly on your body using a tape measure, without pulling too tight. For an accurate result, remove your bra or wear one without underwire or a rigid cup.


My bra size is:

What is the UK bra size match?

Bra sizes vary by country, which can be confusing. The French size, the European size, and the English size (UK) use different sizing systems. To find the bra size match between the French system and the UK system, we have set up an automatic bra size converter. For example, if you wear a 90C in France, your corresponding UK size will be a 34C. It is important to note that the number corresponds to the band size in inches and the letter to the cup size.


Similarly, if you are buying lingerie from the United States, you will need to know your American size. To facilitate your international shopping, a conversion chart will help you navigate between different sizes.

Size conversion guide

Size converter FR, EU, UK, US

Enter your current bra size and select the corresponding country to get the equivalents in other countries.


How to choose the right bra size?

Choosing a perfectly fitted bra is essential for your comfort and confidence. A poorly fitting model can not only be uncomfortable but also ruin your silhouette by creating unsightly bulges.  


Here are some tips to ensure that your bra fits perfectly to your body shape:

  • Check the band size: The band should fit snugly around your ribcage without being too tight. It provides the main support.
  • Make sure of the correct cup size: Your breasts should fill the cup without spilling over or leaving any gaps.
  • Check a size guide: Each brand, including Les Petits Imprimés, may have slightly different sizes. A specific size guide will help you make the right choice.
  • Try different styles: Just like with shirt or pant sizes, the fit can vary depending on the type of bra.
Choose the right UK bra size in a lingerie department.

What are the available bra sizes?

The available bra sizes on the market are varied to fit all women, from small sizes to large sizes. Most lingerie brands strive to offer a wide range of cup sizes and band sizes.

At Les Petits Imprimés, we offer many styles to fit both your body shape and the outfits you wish to wear. For a backless dress, a white top, or an off-shoulder sweater, we have the model you need! Moreover, if despite all our advice and size guides you order the wrong size, you can return the item in question within 14 days. 

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What is the difference between EU and UK sizes?

The difference between sizes in the European Union and the United Kingdom mainly lies in how the measurements are calculated. In Europe, sizes are based on the metric system (centimeters), while in the United Kingdom, they are based on the imperial system (inches).


For example, a French size 85B corresponds to a UK size 32B. The numbers indicate the band size, and the letters represent the cup size. It is therefore important to consult a size chart or a matching guide to ensure you choose the right size when shopping online or during a stay abroad. International size standards may vary, so it is always recommended to check with the specific brand, especially if you are shopping online.

English bra sizes written on a measuring tape.

How to use a conversion chart?

A conversion chart is a handy tool for quickly finding your equivalent size in another system. Here’s how to use it:

  1. Find your current size: Look for your size in the column corresponding to your country (for example, French size).
  2. Identify the corresponding size: Follow the horizontal line to the column of the English size, or other.
  3. Note the conversion: You now have your equivalent size.

Just as there are differences between clothing sizes or shoe sizes depending on the countries, the same applies to lingerie. By understanding how to measure your size, reading conversion charts, and knowing the differences between sizing systems, you will be better equipped to shop for lingerie internationally.

Don't forget that the most important thing is to find a bra that fits you perfectly, both in terms of style and comfort.


At Les Petits Imprimés, we are committed to helping you find the ideal lingerie that will enhance your silhouette. Trust our expertise to guide you in your choices!

International bra size conversion table


The table below will help you convert your bra size between the different systems used in France, Europe, the UK, and the US. Find your current size in the corresponding column, then read the equivalents in the other systems.


Example:
- If your bra size is 90C in France, the equivalents are 75C in Europe, 34C in the UK, and 34C in the US.


Bra size conversion:


FR Size EU Size UK Size US Size
75 60 28 28
80 65 30 30
85 70 32 32
90 75 34 34
95 80 36 36
100 85 38 38
105 90 40 40
110 95 42 42
115 100 44 44
120 105 46 46
125 110 48 48

Cup size conversion:


FR/EU Cup UK Cup US Cup
AA AA AA
A A A
B B B
C C C
D D D
E DD DD
F E DDD/E
G F F
H FF G
I G H

Note: Cup sizes may vary slightly between manufacturers. It is therefore recommended to try several sizes if possible to find the perfect fit.


A question on your mind? We have the answer!

How to measure my size if I don't have a measuring tape?

Use a string or a soft tape, measure your back and bust, then transfer the length to a ruler to get the centimeters.

What to do if the ordered bra doesn't fit me?

No worries! You can return the item within 14 days. Check the "Returns & Refunds" section on our site for detailed steps.

Do sizes vary by brand?

Yes, each brand has its specifics. Check the size guide or try several models to find the one that fits you perfectly.

Profile picture of Laëtitia Lanteri: expert writer in fashion for 7 years.

Laëtitia Lanteri

Experienced writer with over 1200 articles published in 7 years, Laëtitia decodes the latest fashion trends and delivers fresh and current ideas for a bold style.


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