Milliliter (mL)
The milliliter, written as mL, is a metric unit for volume. It is one-thousandth of a liter or one cubic centimeter. It was established as part of the metric system and is used worldwide in medicine, cooking, and science. Because it measures small amounts, it is ideal for both everyday and laboratory use. It is the same size as a cubic centimeter, so people in different fields can easily understand it. This makes the milliliter one of the most useful and common units of measurement in the liter.
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.