3-4-3-4-cup-equals, this equals 1.5 cups. the 'cup' is a measurement that measures volume. it is customary and is generally used in cooking to measure liquids. hence, it's often considered a fluid measurement.. I'm fed up that my measuring cups don't include a 3/4 cup size. i have to use either 3 of my 1/4 ones, or just eyeball 1/4 less in my single cup.