There are about 8 whole bottles in a gallon.There are about 8 whole bottles in a gallon.Source :Source :howtodiscuss
Now, how we can reach this conclusion? 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.
The international system of units
Three main measurement systems
Again, if it is still unclear that how we came to this result, then we can elaborate it even further.
Metric - U.S measurement system - Imperial measurement system (U.K)
Health benefits to drinking water:
People drinking water as it’s an essential part of living healthy and energetic. Not only this but for weight loss, gain energy, for skin complexion and many more benefits of drinking water. So even doctor recommend drinking at least a gallon of water. So, in this, I helped you to calculate the bottles in a gallon.