Yeah, that's higher than I expected, I don't remember ever having been in near-death territory haha
The problem with those BAC calculators is that they assume that when you drink something it automatically "enters your system," but alcohol can actually take a while for your body to digest (especially if you have a stomach-full of it already). Counting drinks alone, my highest BAC "should" have been something around a .38, but there was quite a bit of that volume that I vomited out before it did anything to me.