Bra Size Calculator - Find Your Bra Size
Find your perfect bra size with our accurate calculator. Convert between US, UK, and EU sizing systems instantly.
About Bra Sizing
Bra sizing is the system used to determine the correct fit for bras and other intimate apparel. A bra size consists of two components: the band size, which corresponds to the measurement around your ribcage, and the cup size, which is determined by the difference between your bust measurement and band measurement. Together, these measurements create a bra size such as 34B or 38DD.
Understanding proper bra sizing is important for comfort, support, and health. An ill-fitting bra can cause back pain, shoulder discomfort, and skin irritation. Studies suggest that up to 80% of women wear the wrong bra size, often because they have never been properly measured or rely on outdated sizing information. Factors like weight changes, aging, pregnancy, and hormonal fluctuations can all affect bra size over time.
Different countries use different sizing systems. The US, UK, and EU each have their own standards, which can make shopping internationally confusing. Our calculator handles the conversion between these systems automatically, ensuring you find the right size regardless of where you shop. Whether you are buying online or in-store, having accurate measurements will help you find bras that fit properly and feel comfortable throughout the day.
How to Use the Bra Size Calculator
To find your bra size, you will need two measurements. First, measure your band size by wrapping a soft measuring tape snugly around your ribcage, directly under your bust. Make sure the tape is level and parallel to the floor. Round to the nearest whole number, rounding up if you get an odd number.
Second, measure your bust size by wrapping the tape around the fullest part of your bust, usually across the nipple line. Keep the tape level and snug but not tight. Subtract your band measurement from your bust measurement to find your cup size difference. Enter both measurements into our calculator to get your recommended bra size.
Our calculator will display your size in US, UK, and EU sizing systems. For the best fit, we recommend trying on bras in your calculated size and adjusting based on how they feel. If you are between sizes, we generally recommend sizing up in the cup for comfort. Different brands may also fit slightly differently, so always check the brand-specific size chart when available.
Frequently Asked Questions
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