Returns & exchanges free for 60 days for all orders. Please try on the bra to ensure a good fit, making sure to leave the original tags attached. We only accept underwear in unworn condition, with original tags, in its unopened original polybag. Items marked final sale are not eligible for return or exchange. If something’s not right, we can help. Our Fit Experts are available via live chat, or email to answer any questions you might have.
Read moreBra Size Quiz

Finding a well-fitting bra can sometimes feel like searching for a needle in a haystack. Between inconsistent sizing from one brand to the next and the guessing game of fitting rooms, it’s no wonder so many settle for bras that don’t quite fit. But what if there were an easier way to find your bra size without setting foot in a store? That’s what the ThirdLove bra size quiz is made to do: help you say goodbye to uncomfortable bras and hello to the fit you deserve in just a few minutes and a few clicks.
Why Accurate Fit Matters
You’ve probably heard it before—”80% of women wear the wrong bra size.” But why is this such a widespread issue? Often, it’s because traditional bra shopping relies on outdated measuring techniques or inconsistent size charts.
An ill-fitting bra isn’t just uncomfortable; it can affect your posture, confidence, and even your health. Whether you’ve been wearing the same size for years or recently experienced body changes, getting the right fit ensures you feel comfortable, supported, and ready to take on anything. So, finding your bra size is more important than you might think. And while professional fittings are great, they are not always convenient. An online bra size calculator, like ThirdLove’s, can be an easy, at-home solution to figure out your size.

Benefits of Taking Our Bra Quiz
So, why take the bra size quiz? It's simple: it’s fast, precise, and designed with you in mind. In just a few seconds, you’ll unlock personalized recommendations tailored just for you. Not only will you discover your true size, but you’ll also receive a personalized style match based on your preferences and needs.
And the best part? After taking the quiz, you get $20 off your first purchase. Yep, a better-fitting bra and an extra little something to sweeten the deal. Who doesn’t love a good discount?
How the Bra Size Quiz Works
Taking our bra size quiz couldn’t be easier. We will ask a few quick questions about your current fit, common issues you experience, your breast shape, and the styles you prefer. The quiz has easy-to-use interactive graphics that help you represent your fit issues without describing them. The whole process is smooth and efficient—instead of struggling with a measuring tape or complicated calculations, our smart algorithm does the work for you.
After completing the quiz you'll receive clear, detailed results that guide you to the perfect size and style and a curated bra suggestion. Whether you are in the market for an everyday supportive bra or a little something more special, our quiz will guide you to your bra size in the most straightforward way.

The ThirdLove Advantage
At ThirdLove, we know no two bodies are alike. That’s why we offer one of the most inclusive size ranges in the industry, including our signature half-cup sizes. From A to H cups and band sizes ranging from 30 to 44, we’re here to ensure everyone finds their perfect fit. This extensive size range, combined with our data-driven fit technology, means you’re not just finding a bra—you’re discovering your ideal fit. Our bras are designed to celebrate and support all shapes and sizes, making it easier than ever to find a bra that feels like it was made just for you.
Ready for your perfect fit? There’s no need to keep guessing or settling for bras that don’t quite feel right. Take our bra size quiz today and enjoy the convenience of a bra fitting online service that actually works. With $20 off your first purchase and a hassle-free online bra size calculator, there is nothing to lose—except for those uncomfortable bras you’ve been putting up with for far too long.
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