Just about all the pastas I've seen are 3/4 c per serving DRY; occassionally I'll see something listed at 1 cup cooked.
Again, just my own best guess.
You could (and I do this...
) go ahead and count out pieces into eight little piles (or however many servings per package), then measure it for future reference.
I just put my little piles of pasta--or whatever dry good--into little baggies then.
It's a little crazy, I realize, but it usually saves me craziness down the road, when I can just grab a quick serving and not think about it too much.