A graduated cylinder, also known as a measuring cylinder or mixing cylinder is a common piece of laboratory equipment used to measure the volume of a liquid. It has a narrow cylindrical shape. Each marked line on the graduated cylinder represents the amount of liquid that has been measured.
Graduated cylinders are often used to measure the volume of a liquid. Graduated cylinders are generally more accurate and precise than laboratory flasks and beakers, but they should not be used to perform volumetric analysis, volumetric glassware, such as a volumetric flask or volumetric pipette, should be used, as it is even more accurate and precise.
Graduated cylinders are sometimes used to measure the volume of a solid indirectly by measuring the displacement of a liquid.