PURPOSE: To perform the simplification of operation and the shortening of an accurate weighing time, by inclining the upper surface opening of a cup with respect to the bottom surface of said cup and forming graduations to the side surface of said cup.

CONSTITUTION: Graduations 2W4 are engraved to the side surface of a cup 1 and this cup 1 is constituted so as to incline the upper opening surface 6 thereof with respect to the bottom surface 5 thereof. At the weighing time of water or grain, for example, in the weighing of water by a 1/2 cup, the cup 1 is inclined to pour water so as to reach graduations 2 or more and, thereafter, drain is gradually performed so that the amount of water coincides with the graduations 2. The plane formed by connecting the graduations 2 and the drain port 7 of the upper opening surface 6 is parallel to the bottom surface 5.