Bra Size Calculator 🎀
80% of women wear the wrong size. Let's find your perfect match.
Measurements (Inches)
Measure snugly around your ribcage.
The "Magic" Rule
The difference between your bust and band size determines your cup. 1 inch = A, 2 inches = B, and so on.
Your Estimated Size
32 D
Band Size
32
Cup Depth
D (4" diff)
Why Use the Bra Size Calculator?
Welcome to the Bra Size Calculator! Designed for speed, ease of use, and accuracy, this tool takes the guesswork out of complex scenarios and provides you with instant, reliable results.
Why calculate manually when you can automate? We built this tool to be universally accessible on mobile and desktop, ensuring you always have a reliable utility right in your pocket when you need a quick answer.
Key Features & Benefits
- Fast & Reliable: Delivers instant outputs the moment you enter your data.
- 100% Free: No paywalls, no hidden fees—just straightforward utility.
- Privacy First: Your inputs are processed directly in your browser and never stored on our servers.