How many 750 ml bottles do I need to make one liter?

One full 750 ml bottle and an additional third of a bottle make 1 liter of liquid. One liter equals 1,000 ml, or milliliters.

A 750 ml bottle is equivalent to three-quarters of a liter, or 0.75 liters. A liter is the base unit for measuring volume in the metric system and is a little more than a quart in U.S. measurements. Since an ounce of liquid is equal to approximately 30 milliliters, a 750 ml bottle is comparable to a little more than 25 fluid ounces, approximately 1 pint, and a little more than 3 standard cups. One standard cup equals approximately 200 ml.