WB, Les!
A Juul pod holds about about 3/4 of a ml...
But given the nic hit they deliver, most people would be hard pressed to go through more than one pod in a day.
I just dug out my almost three year old Juul 'cause I've got someone temporarily in the office who's a smoker, and I know there are times she's
jonesing... (Vaping is allowed, smoking isn't).
Anyway, I checked it last night and it still works fine, and one or two small puffs from that thing are the equivalent of a whole lot of much bigger puffs from my normal MTL squonker...