One or more, depending on the size of the bottle(s).
64 oz of water is 128 tbsp.
64 oz
64
The human body needs 64 oz of water a day.
64/16.9 = 3.8 (approx)
64
64 oz of water is 1,814.372 ml
64 oz. in 2qts.
64 ounces = 1,814.37 grams.
4 bottles
128 ounces.
About 2.7 bottles.