Cubic Millimeters
Cubic millimeters are volume units in the metric system. A cubic millimeter is a unit of volume equal to the volume of a cube with sides measuring one millimeter each. It is a very small unit of volume commonly used to measure tiny amounts of liquids or solids. For example, a single drop of water may have a volume of approximately 50 cubic millimeters.
US cups
A US cup is a common unit of measurement in the United States for cooking and baking. One US cup is about 0.236588 liters and is often used to measure ingredients in recipes.