Bra Size Calculator

Find your perfect bra fit with this free bra size calculator that helps you accurately measure your band and cup size using simple steps for maximum comfort and support.

LOCATION SIZE CUP
EU 80 AA
US 36 A
UK 36 A
FR/ES/BE 95 AA
IT 4 AA
AU/NZ 14 AA
JP/KO 80 A

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Find Your Perfect Fit with Our Smart Bra Size Calculator

Wearing a bra that fits well is not just about fashion or style—it's about feeling confident, supported, and comfortable in your own body. Yet, a large number of individuals wear the wrong size daily, leading to discomfort, posture issues, and lack of support. That’s where our intelligent Bra Size Calculator steps in. Designed to help you determine your correct bra size from home, this tool eliminates guesswork by using two essential body measurements. In this comprehensive guide, we’ll explore how to use this tool, who it’s for, how to tell if your bra fits correctly, types of bras suited for different bodies and purposes, and how to take care of your bras so they last longer.

Using the Bra Measurement Tool – Step-by-Step Guide

Our Bra Size Calculator is simple and precise. You only need a measuring tape and a few minutes to discover your accurate size. The process involves two straightforward measurements:

  • Underbust Measurement (Band Size): Measure directly beneath your breasts, where the band of your bra normally rests. The tape should be snug but not tight. Round to the nearest even number.
  • Bust Measurement (Fullest Part): Wrap the measuring tape around the fullest part of your bust, ensuring it stays level across your back and chest without compressing the tissue.

Once entered into the calculator, your band size and cup size will be determined by calculating the difference between the bust and band measurements. For example, a 34-inch underbust and 37-inch bust typically results in a 34C size.

Who Can Benefit from a Bra Sizing Calculator?

Our tool is designed for everyone who wears bras. Whether you’re shopping for your first bra, looking to replace your wardrobe with better fitting options, or undergoing physical changes due to pregnancy, weight fluctuations, or gender transition, this calculator is your go-to resource. It's especially useful for online shoppers who don’t have access to in-store fittings. Inclusive of all body types, this tool aims to make bra fitting accessible and stress-free for everyone.

How to Know If Your Bra Truly Fits

Even if you've used a calculator, it's important to assess your fit with a trial bra. Here are key signs your bra is the right size:

  • Straps: They should rest gently on your shoulders without digging in or slipping off.
  • Band: The band should sit horizontally across your back and feel secure on the loosest hook. If it rides up, it's too big.
  • Cups: Your breasts should fill the cups completely without bulging over the top or leaving gaps.
  • Center Panel: The part between the cups should lie flat against your chest without lifting.

If your bra fails any of these tests, consider adjusting your size or trying a different style to match your shape and preferences.

Matching Bra Types to Your Needs and Lifestyle

Now that you know your size, it’s time to explore the wide world of bras. Each style is tailored for a specific purpose, outfit, or comfort level. Let’s dive into the most popular types and their unique benefits.

Supportive and Structured: The Wired Option

Underwire bras are ideal for those seeking strong support and a contoured shape. The embedded wire beneath the cups helps lift and define the bust, making them perfect for everyday wear, especially for larger sizes. Look for soft padding and flexible wire for added comfort.

Gentle and Flexible: The Wire-Free Solution

Wireless bras offer freedom and flexibility, making them ideal for lounging or casual days. They’re especially comfortable for people with sensitive skin or those recovering from surgery. Despite the lack of wire, modern versions offer surprising support using thicker bands and structured fabrics.

Confidence Boost: Lift and Enhance

Push-up bras are perfect for creating cleavage and enhancing volume. Featuring angled padding at the bottom of the cups, they push the breasts upward and inward. They're great for low-cut tops and dresses, offering both visual enhancement and secure fit.

Elegant and Romantic: The Shelf Design

Balconette bras feature cups that create a horizontal neckline and are cut lower to show more of the top portion of the bust. They give a lifted appearance and work well with square or wide necklines.

Low Coverage and Stylish: The Half-Cup Fit

Demi bras provide less coverage than traditional styles, typically exposing the upper half of the breasts. This makes them great for petite frames or for wearing under scoop-neck and V-neck tops.

For Special Necklines: The Deep Plunge

Plunge bras have a deep V-shaped center, ideal for low-cut dresses or tops. The cups are angled and structured to enhance cleavage without being visible in revealing outfits.

Streamlined Shape: The Minimizing Design

Minimizer bras are designed to reduce the projection of the bust, helping clothes fit better for individuals with larger breasts. They use specially designed cups and seams to redistribute tissue without flattening or discomfort.

Relaxed and Trendy: The Soft Bralette

Bralettes are unstructured, non-padded bras often made of lace or soft cotton. They’re perfect for lounging, sleeping, or casual wear. Though they lack formal support, many find them perfect for comfort-first days or layered fashion looks.

Simple and Strap-Free: The Bandeau Style

Bandeau bras are tube-like pieces that wrap around the chest. Ideal for strapless tops, they’re best suited for smaller busts due to minimal support. Some versions include light padding or silicone grips for stability.

Complete Comfort: Maximum Coverage

Full coverage bras envelop the entire breast, providing maximum support and reducing spillage. Ideal for fuller busts or everyday use, they offer a secure and smooth finish under clothing.

Invisible and Smooth: The Seam-Free Choice

T-shirt bras are made to disappear under clothes, with smooth, seamless cups and a natural shape. Often lightly padded, they’re versatile enough for any outfit and provide comfort all day long.

Active and Durable: Built for Movement

Sports bras are engineered to minimize bounce and provide firm support during physical activity. Available in compression and encapsulation styles, they reduce strain and are essential for any fitness routine.

Strapless and Versatile: The Invisible Hero

Strapless bras stay in place without shoulder straps, often using silicone grips or underwire. Perfect for strapless or off-the-shoulder outfits, choose a snug band and molded cups for best results.

Convenient and Easy: Front Closure Designs

Bras with front clasps are easy to wear and remove, especially for people with limited shoulder mobility. The closure lies flat and can enhance cleavage due to the front-positioned clasp pulling the cups together.

Neck-Hugging Fashion: The Halter Style

Halter bras have a single strap that wraps around the neck, making them perfect for halter tops or dresses. They lift the bust upward and center it for a flattering, lifted silhouette.

Invisible Innovation: Stick-On Solutions

Adhesive bras or stick-on cups are ideal for backless or strapless outfits. They offer light support and shape without visible straps or bands. While they’re reusable, they require gentle care and aren’t ideal for all-day wear or larger busts.

How to Keep Your Bras in Great Condition

Caring for your bras properly extends their life, maintains their fit, and saves money. Here are some best practices for bra care:

  • Hand wash with mild detergent in cool water whenever possible. If machine washing, place bras in a lingerie bag and use the delicate cycle.
  • Air dry by laying bras flat or hanging them by the center gore. Avoid machine dryers, as heat breaks down elastic and fabric faster.
  • Rotate your bras to allow elastic to recover between wears. Wearing the same bra daily reduces its lifespan quickly.
  • Store them carefully by stacking molded cups and not folding one cup into the other to avoid creasing.

Knowing When It’s Time for a New Bra

No bra lasts forever. On average, a bra should be replaced every 6 to 12 months, depending on frequency of use and care. Here are signs it’s time for a replacement:

  • Straps that won’t stay tightened or feel stretched out.
  • Bands that ride up or feel loose even on the tightest hook.
  • Cups that lose their shape or fabric becomes thin.
  • Underwires poking out or feeling uncomfortable.

Updating your bras not only improves comfort but also ensures better support and appearance under your clothes.

Wrapping Up: Comfort Begins with the Right Fit

Your journey to a comfortable, supportive, and confidence-boosting bra begins with understanding your true size and matching it to the right style. Our Bra Size Calculator offers a convenient, reliable way to take control of your comfort from home. Whether you’re dressing for work, the gym, a date night, or just lounging around, the right bra makes all the difference. Explore different types, revisit your size regularly, and invest in quality options that complement your lifestyle.