This surface area calculator helps you find the area of the most common three-dimensional solids. If you ever wondered, for example, what is the area of a cube, this calculator is here to help you. In this article, you can find the formulas for surface area of a sphere, cube, cylinder, cone and rectangular cuboid. We will also explain how to calculate the surface area of a sphere as an example.
Our surface area calculator can find the surface area of five different solids. The formula used depends on the type of the solid.
A = 4πr², where r stands for the radius of the sphere.
A = 6a², where a is the side length.
A = 2πr² + 2πrh, where r is the radius and h is the height of the cylinder.
A = πr² + πr√(r² + h²), where r is the radius and h is the height of the cone.
A = 2(ab + bc + ac), where a, b and c are the lengths of three sides of the cuboid.
If you want to find the surface area of a sphere, you need to follow these steps:
A = 4πr².
A = 4π * 10² = 1256 cm².
The units of surface area are always square units of length. For example, you can express it in cm², in², ft², m², but also in acres and hectares.
If you want to find the volume of any of these solids, use our volume calculator to do it.