I couldnt tell ya for sure :( I am a c and it still had a little room! I tried to look the dress up at mint.com but I couldnt find it...I am sorry I dont have ne more info ...I am not much of a dress person it was actually my first dress buy!
At the purple sash it is 16 inches wide and 36inches I measured around the dress at the sash... Im not too sure where to measure the lenghth from...(not so good with this dress thing... so just let me know where to measure it...got my tape handy)