When measuring the volume of liquids, 1 quart is equal to 4 cups. There are 32 fluid ounces in a quart, and each cup is 8 fluid ounces.
Other measurements also relate to quarts. A quart consists of 2 pints, and each pint is 2 cups, or 16 ounces. Quarts are also smaller parts of a whole. One gallon equals 4 quarts, and half a gallon is 2 quarts. Since each quart is 32 fluid ounces, a gallon is the same as 128 fluid ounces. When converting to the metric system, a quart is just slightly smaller than a liter.