If you don't usually buy UK bras and aren't sure of your UK bra size then this table will help. However, it is best to use this table as a starting point and then measure yourself for a bra to make sure you get a perfect fit.
*Example* If you usually buy 34AAA American bras then your Arabel size is 34AA. Similarly, if you usually buy 12A Australian bras then your Arabel size is 34B.
If you have any questions please just ask. It's what I'm here for!