Measure Yourself for the Perfect Fit
A bra that fits well makes all the difference. If you're in a pinch and can't come in for a fitting, here are some tips for taking your measurements at home.
Bra-Fitting Services & Guide
Our certified bra fitters offer expert care and personalized solutions—customized for your comfort. Experience the support and confidence of your perfect fit.
How to Find Your Perfect Bra
The undergarments you wear should never interfere with your day-to-day activities—in fact, they should fit so comfortably that you forget you're even wearing them. If that sounds impossible, there's a good chance you haven't been wearing the right size. Fortunately, learning how to measure your bra size doesn't take long, and you'll reap the rewards forever.
Come in for a Bra Fitting
If you'd like to consult an expert, ours are here to help. Connect with one of our certified bra fitters (for free!) and they'll help you find your perfect fit. Here's how it works:
1. Book your free appointment
Walk-ins are welcome too! Come to your fitting wearing your favorite bra.
2. Chat with a certified bra fitter
During a 30-minute session, our expert will analyze how your favorite bra fits and guide you through taking your measurements.
3. Leave with the perfect fit
Our expert will then curate a selection to help you look—and feel—your best. And remember, there is no obligation to purchase anything.
How to Measure Your Band Size
- Put on your best-fitting nonpadded bra.
- Wrap a measuring tape snugly around your rib cage, just beneath your bustline.
- Adjust the tape so that it's parallel to the floor.
- Exhale deeply—you want the smallest measurement possible.
- Round to the nearest whole number and refer to the size chart below.
Tips: Because bra bands tend to stretch over time, your bra should fit firmly on the last hook when new. Also keep in mind that larger band sizes tend to stretch more since there's more material, so you may want to size down. Or you may want to size up if you're between sizes and find the band's too tight. You may also want to size up or down if the band feels especially tight or loose, since band sizes can vary from brand to brand.
How to Measure Your Cup Size
The letter in a bra size corresponds to your cup measurement. While we tend to think of the cup size range as A through D, it's actually bigger. If you've never measured your bust, it's possible you aren't wearing the right cup size.
To determine your cup size, wrap a measuring tape around the fullest part of your bust while standing. The tape should be taut but not tight—try not to squish or distort your breasts. Once you've measured your bust, simply subtract your band size from this number; the difference corresponds with the letter of your cup size (refer to the size chart below).
Note that American and UK sizes are different, so double-check the bra brand when trying it on or making your purchase.
Size Conversion Chart for D+
Checking out a brand you've never worn before? Brands from different countries label cup sizes for D and above differently. Use this chart to find your size.
French sizing: Chantelle Lingerie, Simone Perele
American sizing: b.tempt'd by Wacoal, Calvin Klein, Natori, Wacoal, True & Co
British sizing: Elomi, Fantasie, Freya, Etam
How Does Your Bra Fit?
Here are some signs that your bra is too small, too big or just right.
Too Small
- Breast spillage on top or sides
- Center section doesn't lie flat
- Underwires poke or ride up
Too Big
- Cups wrinkle or gap
- Breasts fall out under the band
- Band rides up in back
Just Right
- Smooth cups
- Center section lies flat
- Band is low and snug
- You feel comfortable
How Often Should You Measure Your Bra Size?
Your bra size fluctuates when your body's size, shape and weight change. Measure yourself at least once a year since your body changes naturally as you age. Additionally, measure your bra size more often if you experience any of the following:
- Weight loss or gain
- Pregnancy
- Hormonal changes
Wearing the correct bra size can improve your comfort, relieve back and shoulder pain, and boost your confidence—and it's also good for your posture. As our bodies and lifestyles change, so do our bra sizes, so make sure to visit your local Nordstrom store to get fit often.
Silhouette Solutions
There are many options when it comes to bra types, but it can be challenging to find your favorites. Luckily, we've put together this quick guide with everything you need to know about popular styles.
Bra Q&A
Why is my bra band riding up my back?
Your bra is either too large or needs to be tightened. If it's still too loose after you've adjusted the band, it's time to go down a band size (and possibly up a cup size).
Why are my breasts spilling over or bulging?
Your bra's cups are too small, and you need to go up a cup size.
Why do my bra cups pucker or gap?
When this happens, it indicates that your breasts don't fill out the cups because the bra is too large.
Why are my bra straps slipping?
If you've adjusted your straps and they still slip off your shoulders, either the band is too big or your bra has lost its elasticity.
Why do my bra straps dig into my shoulders?
Try loosening the straps. If that doesn't solve the problem, it's likely the cups are too small, and you need to go up a cup size.
Why does the underwire poke me?
This happens when you're wearing a cup size that's too small. It can also occur if the underwire has pushed through the fabric. In the latter case, it's time to toss the bra and purchase a new one.
How do I wash my bras and underwear?
Use a lingerie wash bag and lingerie wash (or any type of detergent without lye). Be sure to clasp the bras before putting them in the bag. Wash on a gentle cycle and line dry.
How should I store my bras?
Bras with padding should lie flat in your drawer. Bras without padding can be folded.
How long should my bras last?
If you're rotating at least 4-6 bras weekly, they should last about a year. (Avoid wearing a bra two days in a row, as the band needs time to rest and bounce back.)
How do I know if it's time to retire my bras?
Here are some signs to watch for to know if it's time to say goodbye to a bra:
- The band is stretched out and no longer provides support.
- The wires are poking out.
- You seem to suddenly have four breasts instead of two! This indicates that the cups are too small.
- The bra is no longer comfortable.
Revisit a fitting once a year or when you notice that your bras are uncomfortable.
In-Store Fittings
Still have questions? Come talk to one of our in-store fit experts. Bra fittings are free, simple and take 30 minutes or less. Contact your local store to set up an appointment or book an appointment online. Walk-ins are always welcome too.