Free Bra Size Calculator — Find Your Perfect Fit
Finding the right bra size is essential for comfort and support. Studies show that up to 80% of women wear the wrong bra size. Our Bra Size Calculator helps you find your perfect fit using simple measurements.
All you need is a soft measuring tape. Measure your band size (underbust) and bust size (at the fullest point), then enter the measurements here. The calculator shows your size in US, UK, and EU systems.
The cup size is determined by the difference between your bust and band measurements. Each inch (2.5 cm) of difference represents one cup size, starting from AA.
Remember that bra sizes can vary between brands and styles. Use this calculator as a starting point and always try on bras before purchasing when possible.