Find Your Perfect Bra Size: A Step-by-Step Guide

Wearing the right bra size can completely transform how you look and feel — offering comfort, support and confidence all day long. Yet, many women are still wearing the wrong size without even knowing it. At Triumph, we believe that every woman deserves the perfect fit. That’s why we’ve made it simple with our Bra Size Calculator and a quick measuring guide you can do right at home.

Step 1: Measure Your Band Size

Using a soft measuring tape, wrap it snugly around your ribcage, just under your bust. Make sure the tape is level and sits flat. Round off to the nearest whole number — this is your band size.

Step 2: Measure Your Bust Size

Next, measure around the fullest part of your bust, ensuring the tape isn’t too tight or loose. Again, round to the nearest whole number.

Step 3: Calculate Your Cup Size

Subtract your band size from your bust measurement. Use the difference to find your cup size — for example, a 1-inch difference equals an A cup, 2 inches a B cup and so on. Not sure how to measure cup size correctly? Use our Bra Size Calculator to double-check your size instantly.

Explore the Right Fit for Every Body

Once you’ve got your size, it’s time to explore lingerie that’s made to support you. From our iconic Triumph Doreen Everyday Bra (loved for its all-day comfort) to the smoothing magic of our Minimizer and Smooth Minimizer ranges and the seamless charm of T-shirt bras, we offer styles to suit every breast size and body shape.

Whether you’re shopping for everyday essentials or something special, you’ll find the perfect lingerie set for women at Triumph. From comfy bra and panty sets to elegant women’s underwear, we’ve got something for everyone.

Bonus for Our Members

Join the My Triumph membership to enjoy early access to new collections, exclusive offers and birthday surprises. Because when you buy lingerie online, it should always come with a little extra joy.

Ready to meet your best fit yet? Let’s get measuring.