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
64 oz of water is 1,814.372 ml
64 oz. in 2qts.
You would need to drink 4 bottles of 16.9 fl oz water to get a total of 64 ounces.
64 ounces = 1,814.37 grams.
About 2.7 bottles.
To determine how many 16.9 oz bottles of water make up 64 oz, you would divide 64 by 16.9. This calculation results in approximately 3.78 bottles. Since you cannot have a fraction of a bottle, you would need to round up to 4 bottles to reach a total of 64 oz.
64 oz / 9oz = 7.1