How Many Water Bottles Make a Gallon?

To determine how many water bottles it takes to make a gallon, we need to do a little math. As mentioned earlier, one gallon is equivalent to 128 fluid ounces of water. Since a standard water bottle holds 16.9 fluid ounces, we can divide 128 by 16.9 to get our answer.

128 ÷ 16.9 = 7.57

Therefore, it takes approximately 7.57 water bottles to make one gallon of water.