Microliters
Microliters are a unit of volume in the metric system used to measure very small amounts of liquid. One microliter is equal to one millionth of a liter. This tiny unit of measurement is often denoted by the symbol μL. To put it into perspective, a single drop of water is roughly equivalent to about 50 microliters.
US liquid quarts
A US liquid quart is a volume unit in the United States to measure liquids such as water, milk, and other beverages. One US liquid quart is a quarter of a US liquid gallon and is about to 0.946353 liters or 0.000946353 cubic meters.