[Heaven's Night]

That sounds about correct by a quick glance, I'm quite good at this as I've read a lot into how sizing works and how different breast volumes look like depending on who its own. ^_^ Quite typical is that ABTF might give a result which needs to be downsized one or two cups, it appears to get more precice when there's more boob vs. chest so it likely calculates bigger sizes better.

But in your case I think 38D or DD is likely a very close match depending on the shape of the bra.