How many bottles of water should I drink per day?
That depends on the size of your glass. After all, the word glass is descriptive for the material that a container is made from and says nothing about the size or volume of the container. If the size of your glass container holds 8 ounces, then it is an 8 ounce glass. Same goes for a 16 or 64 ounce glass container. A true “cup,” (as in measuring cup and not a huge mug at coffee shop) is 8 ounces. 8 ounces = 1 cup and 16 cups = 1 gallon 16 ounces = 2 cups = 1 pint and 8 pints = 1 gallon 32 ounces = 4 cups = 1 quart and 4 quarts = 1 gallon 128 ounces = 16 cups = 1 gallon 33.8140226 ounces = 1 liter 1000 ml = 1 liter 3.7854118 liters = 1 gallon Keep in mind that your water intake should be over an entire day and not all at once. Drinking large amounts of water in a short period of time can result in water intoxication thereby flushing out necessary electrolytes.