Lateral Area Formula The lateral area formula is used to find the lateral area of any solid object. The lateral area of any figure is the area of the non-base faces only. Lateral area formulas help in calculating the lateral surface area of different figures including cuboid, cube, cylinder , cone, and sphere. Let us see more about the lateral area formulas along with a few solved examples. A cylinder is defined as a closed solid object with two identical circular or elliptical bases joined by curved side. The area of the side surface is known as the lateral surface area of the cylinder . Use the below given online lateral surface area calculator to find the LSA of a cylinder based on the radius and height of the cylinder . Calculate the unknown defining surface areas , height, circumferences, volumes and radii of a capsule with any 2 known variables. Online calculators and formulas for a cylinder and other geometry problems. The lateral surface area (LSA) of a cylinder, also known as the curved surface area (CSA), is calculated using the formula 2πrh , where 'r' represents the radius and 'h' represents the height of the cylinder.