Bra Size Guide

To start with, measure yourself

Measure yourself using a tape measure and don't pull to tight. Ask someone to do it for you so it's more accurate.

1. Place the tape measure just below where your bra sits to measure the underbust / Band
2. Measure around the fullest part of your bust / Cup

See the size grid below to find out your bra size.

Bra size grid

1. First measure your underbust for your band size: The number of centimetres is your size.

2. Then measure the fullest part of your bust for your cup size.

Both measurements will give you your bra size.

Size guide for bras in sizes XS, S, M, L, XL and XXL

Now you know your bra size, you can find out your size for our bras in sizes XS, S, M, L, XL and XXL.

Please see below:

International bra size guide

Do you want to check which bra size corresponds to the French or UK size?
Open the table below to check your size. Cup sizes (A, B, C etc.) are the same.

Top tips for choosing your bra

Choosing the right bra size is as important as choosing the right shape. Your bra should support your bust properly first and foremost. View our bra size and fitting tips to get your perfect bra.

How do I fit my bra?

You must choose the right bra size and fit it properly to be comfortable. Wearing a poorly fitting bra can be just as uncomfortable as wearing a bra in the wrong size or shape. Not only is a badly fitted bra ugly but it can also affect your health. A good fitting bra is comfortable and you don't feel like you're wearing one. It takes minutes to fit your bra properly and avoid any unpleasantness.

Fitting my bra clasps

The back of your bra (the band of fabric from your cup to your back) should be parallel to the ground. If the back goes up it may be because the clasps are in the wrong place. Usually the middle position is best, ideally you should be able to put two fingers between the bra fabric and your back.

Adjusting straps to suit my shape

We're not all the same length between our shoulders and our bust. For maximum comfort and balance, adjust the straps to suit your build. An easy thing to do is to check they're not too tight: if you can put your finger between the shoulder and strap once adjusted then it means it fits properly. If you have a large bust, choose a model with wide straps for better support.

Does my bra suit my bust?

Have you tried to adjust your bra and it still doesn't feel right? If you feel like you're wearing a bra, it may be time for a change or you may not have picked the right one for your shape. Are you an apple, pear or hourglass? Find out which models and cuts are right for you with our shape guide.

My bra band goes up at the back

The band is the most important part of your bra. But what if you can't get it to fit with the clasps? Just lengthen the straps a bit to stop it going up. If that doesn't work, it's because your bra is too big. Choose a bra with a smaller band size but don't change the cup size.

The cups on my bra are loose

If you feel like your bust isn't properly supported then it's because it isn't: the cups are loose or the top of the cup doesn't touch your skin. You've chosen a model that's too big. To resolve the situation, choose a model with a smaller band size and cup size.

The underwire is annoying me and isn't fitted

For underwire to do its job, it has to perfectly encase your breasts and mustn't "squash" your bust. Get a bigger bra if it's squashing you. If the pain is only under your arms, get a bigger cup size.

Other size guides

Our shapes guide