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.
Metric cups
Metric cups are used in cooking and baking to measure ingredients such as flour and sugar. One metric cup is 250 milliliters or a quarter of a liter.