Small quantities are measured in fluid ounces - you can see these on measuring cups for cooking. And the metric measures for liquids are litres and, for smaller quantities, millilitres.
Besides pints and gallons, a unit used for liquid measurement is quart, cup, teaspoon, and tablespoons. You can also use "half" for cups, quarts, and gallons. Two other ways of measuring liquid is by volume and density.
