how many 16 oz water bottles are in a gallon
In simple terms we must understand the units used for a simple bottle (in most cases it is in liters). So, for an average user a most common bottle used in everyday life is a regular pet size 500 ml bottle. These types of 7 and a half bottles (7.57) equals to a gallon. As rounding off can be necessary in this case, therefore, we approximate it as 8.