0.31 gallon. 1 gallon makes 128 ounces and 1 ounce is 0.0078 gallon in U.S measure. There are 8 ounces in a cup, 2 cups in a pint, 2 pints in a quart and 4 quarts in a gallon. That makes 128 ounces in a gallon US. In UK 20 ounces to the pint, 8 pints to the gallon which makes 160 ounces Imrerial measure.
640 bottles
About 244.
40 16-oz cups.
Assuming the oz. you refer to are weight, 40 lbs. would yield 160 gallons mixture.
40 8-ounce glasses.
102 oz is equal to 0.796875 gallons.
That is 2.5 gallons
15.625 OZ
27136 oz
You need 0.6 fl oz for 1,700 gallons.
That is 1.485 gallons
0.0625 US gallons.
1.6484375 US gallons
768 US oz.