Surface Area Calculator

Calculate the surface area of common 3D shapes accurately and instantly.

Select Shape & Enter Dimensions

Select a shape and enter values.

What Is Surface Area?

Surface area is the total area that the surface of a three-dimensional object occupies. It is commonly used in geometry, engineering, construction, and science.

Why Use a Surface Area Calculator?

✔ Save time on manual calculations
✔ Avoid formula mistakes
✔ Useful for students, engineers & designers
✔ Instant results for multiple shapes

Calculator Stats

Category: Geometry & Mathematics
Supported Shapes: Cube, Cuboid, Sphere, Cylinder
Units: Any consistent unit (cm, m, in)

Surface Area Formulas

Cube = 6 × a²

Cuboid = 2(lw + lh + wh)

Sphere = 4 × π × r²

Cylinder = 2 × π × r × (r + h)