Best Answer: Half cup. Each stick of butter is: 1/4 lb 1/2 Cup 4 oz of butter has 4 quarters so 1/4 pound is one stick which equals 1/2 cup.
“How many cups in one stick of butter?” or some variation of that. I've finally remembered that 1 pound of butter is four sticks, so weight I'm good with. . here has the measurements for cups on the label, from 1/4 cup to 1 cup.