A cubic centimeter (cc) is a unit of volume that represents the volume of a cube with edges one centimeter in length. It is equivalent to one milliliter, which is the volume of one cubic centimeter of water at standard temperature and pressure. The symbol for cubic centimeter is cc or cm3. Cubic centimeters are commonly used in various fields, such as science, engineering, medicine, and construction, to measure the volume of liquids, gases, and solids. In internal combustion engines, "cc" refers to the total volume of its engine displacement in cubic centimeters. The displacement can be calculated using the formula where d is engine displacement, b is the bore of the cylinders, s is length of the stroke, and n is the number of cylinders. Some people use "ccs" to indicate plural, while others use the abbreviation as both singular and plural. One cc of water weighs one gram, and a thousand ccs is one liter.