Bra Size (Band & Cup) Calculator
Calculate your bra size from your bust measurements.
cm
cm
Result
75B
Bra size: 75B
Result in all units
Step-by-step solution
What Is Bra Size?
Bra size consists of the underbust circumference (band) and the bust circumference (cup) measurements. The correct size is decisive for comfort.
How is it calculated?
How Is It Calculated?
- Enter your underbust and bust circumference measurements.
- The underbust band gives the band size (for example 75, 80), and the difference between the two measurements gives the cup size (A, B, C…).
Frequently Asked Questions
How is the cup size determined?
The difference between the bust circumference and the underbust circumference indicates the cup size; every few centimetres corresponds to one cup step.