How many liters/gallons?

Good morning fellow members.

I was thinking about putting up a closet
but i need to know how big pots i need
im going to have feminized autoflower strains
that will harvest after 6-7 weeks from seedling to finish.
how many liters or gallons will i need for that
8 - 10 - 12 - 15 ?

not sure about the litres, but i would go with about a three gallon size or larger.. its always recomended to have one gallon of container for every month of growth, so if your growing 60 day wonder by dna, two gallons would do.. just need to know the time of your plants, and you can figure it out from there.

i bought 7 gallon bags cut the bags as needed