BraSzCalc Bra and CUP size calculator

The Bra and CUP size calculator can determine the sizes after measurement of the overbust and underbust sizes.


The measurement can be done in inch or in cm.
Sizes are displayed for different countries
1. EU, germany, france, italy, spain
2. USA, Great Britain Australia and New Zealand.
We try to minimize the usual rounding problems by using cm and inch calculation at the same time, also fraction values can be entered. In critical cases we show multiple possible values that can be used.
The EU calculations are done using EN 13402 the new european standard.
Conversion can done between different countrys. You can enter the size and CUP for one country and see all other sizes.

I worked as an external producer for one of the largest warehouses in Germany in producing electronic catalogues, so I stumbled about CUP size calculations in earlier times.