The milliliter (mL) is a metric unit of volume equal to one-thousandth of a liter, widely used in medicine, cooking, and chemistry for measuring small liquid quantities. Cough syrup dosages, perfume bottles, and laboratory reagents are all commonly labeled in milliliters. One milliliter equals exactly one cubic centimeter, making it interchangeable with cm³ in scientific contexts.

The centiliter (cL) is a metric unit of volume equal to one-hundredth of a liter, commonly used in European countries for beverage and spirit bottle sizes. Wine and spirit labels in the EU frequently display volume in centiliters alongside milliliters. One centiliter equals exactly 10 milliliters or about 0.338 fluid ounces.