To begin with, it’s important to understand that an ounce is a measure of weight whereas a quart is a measure of volume. So in order to answer your question it’s necessary to know whether you’re measuring sand or water or something else. But let’s just think of water as an example. In Great Britain and Australia there are about 20 fluid ounces in a pint and in a quart there are 2 pints. But since metric system’s used in these countries you should probably think of the USA where 26 fluid ounces in a pint.