Calculate the total outer surface area of common 3D shapes. Essential for painting estimates, material requirements, heat transfer calculations or packaging design.
Informational calculator only. Verify important outputs independently before legal, tax, medical, engineering, safety-critical, contractual, employment, or compliance use.
Enter job values, review the estimate, then use the decision hints before ordering or quoting.
Side (cube) or radius (sphere/cylinder)
Only for cylinder
Cube: 6s² Sphere: 4πr² Cylinder: 2πr² + 2πrhCube: 6 faces, each s². Sphere: derived from integral calculus. Cylinder: two circles + rectangular side.
For open shapes subtract appropriate faces
This cone surface area calculator helps when radius, slant height are already known and you want the surface area quickly.
Open this calculator for cases where a small arithmetic slip would otherwise force a full restart around cone total surface area.
Keep cube surface area calculator math tidy when a plan, worksheet, or note set needs one quick calculation.