Cubic Centimeter (cm³ or cc)
A cubic centimeter (cm³/cc) is a metric volume unit equivalent to one milliliter. Established with the metric system in the 1700s, it is frequently employed in scientific, engineering, and medical settings to measure small quantities accurately. The abbreviation “cc” is particularly prevalent in medical prescriptions for liquids and in the automotive field for specifying engine size. Since it matches the volume of a milliliter, the cubic centimeter is easily compatible with the rest of the metric system while remaining important in specialized applications.
US Quart (qt)
The US quart, symbol qt, equals 1/4 of a US gallon, or about 0.946 liters. Originating from English quart measurements, it was standardized in the US system in the 19th century. Quart is frequently used in American cooking, grocery packaging, and automotive fluids. While less common internationally due to the adoption of the metric system, the quart remains an important household and commercial measure in the United States.