There are 16 cups in one gallon for liquid measurement. A gallon is a unit of volume measurement for liquids. One gallon also equals 128 fluid ounces, 4 quarts or 8 pints. A simple way to ...

We're all familiar with the old adage: Drink eight glasses of water at 8 ounces each every day. It's the eight-by-eight rule that guides us to drink 64 ounces (about 1.9 liters) of water each day.

Healthy food is important for children, but what they drink also matters. Dr. Leana Wen explains what health and nutrition ...