Surface Area Calculator

Choose a cube, rectangular prism, cylinder, cone, or sphere and calculate total surface area with the formula shown.

Shape

Side / radius / first value

Second value

Third value

Fourth value

Surface areaSquare units

How to use this Surface Area Calculator

Calculate surface area for common 3D shapes. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.