Oh, that's a wonderful question! 2.7 liters of water is about 91.3 fluid ounces. Isn't it amazing how different units can help us appreciate the beauty and diversity of measurements? Just remember. Liters are three places to the left of milliliters. So you have to move the decimal place three times to the left. You will get 50 mL =.05 L. Well, darling, there are approximately 3.78541 liters in a gallon. So, if you divide that by 1.5 liters per bottle, you get around 2.52 bottles needed to make up a gallon. 1 cup equals 8 fluid ounces (U.S.), which equals 236.587 milli-litresTherefore 2 litres equals 8.454 cups One liter equates to approximately 4.225 8-ounce glasses. There are 8 bottles of 500ml water in 4 liters. To convert liters to milliliters, you multiply by 1000 (1 liter = 1000 ml). So, 4 liters is equal to 4000 ml. Dividing 4000 ml by 500 ml per bottle. In perfectly pure, neutral water with pH of 7, then the concentration of H+ is 10-7 moles per liter. In one gallon, there are 3.7854 liters. 1 liter is equal to 4 glassess 2 liter is equal to 8 glasses 0.5 liters is equal to 2.5 glasses Therefore 2.5 glasses is equal to 8+2.5=10.5 glasses or 10 and a half glasses. There are approximately 135.25 fluid ounces in 4 liters. Since there are 8 ounces in a glass, you would need 16.91 glasses of water to equal 4 liters. However, since you cannot have a fraction of. There are approximately 101.44 fluid ounces in 3 liters. Since there are 8 fluid ounces in one glass of water, you would divide 101.44 by 8 to find there are about 12.68 glasses of water in 3.