drops to fill freshly stuffed carts?

[Flitzanu]

seems like folks cover these in videos, or maybe i'm missing finding them, but is there a list/post of appx how many drops will fill an empty cart per model of ecig?

or call me lazy for not searching enough

seems like i can't be the first to ask, so slap me if i'm lazy.

[Kate]

There are some ml measurements here, not drops though - Helpful links and videos for a new user.