There are 30 750ml bottles in 15 gallons. One gallon is equivalent to about 4 bottles of 750ml.
There are approximately 30.28 750ml bottles in 20 gallons of liquid.
600 bottles
Twelve. 750ml X 12 = 9000ml (1L = 1000ml)
Four.
One standard bottle.
125-150 bottles should be plenty.
either 6 or 12 if they are standard 750ml bottles.
There are 189,270.589 mL in 50 gallons, so there are 252.361 750 mL bottles in 50 gallons, or approximately 253 bottles.
five bottles. You'll also have at least 250ml left over to fill from a sixth bottle, and given that a 750ml wine bottle won't be completely full, you can estimate that actually about half (375ml) the sixth bottle can be poured into the 4l vat or container, given an average of 725ml in a 750m bottle (allowing for corks and margins of error.
Just over 5 A single 750ml bottle contains .198 gallons. Therefore you'd need 5.1 bottles to make a gallon.
There are many different water bottles. The commonest have 500 ml of water, but some have 750ml, or 1 litre