To answer this question, you need to understand how to convert unit. In this case, it will be quarts(qt) into centimeter cubic(cm3). A quart is 1/4 gallon and one gallon equal to 3 785.4 cm3. Then the calculation would be:
5qt of milk * 0.25 gallon/qt * 3 785.4 cm3/gallon= 4731.75 cm3