Surface Area Calculator
Cube
Rectangular Prism
Sphere
Cylinder
Formula
Cube: 6s² | Box: 2(lw+lh+wh) | Sphere: 4πr² | Cylinder: 2πr²+2πrh
Frequently Asked Questions
What is surface area?
Surface area is the total area of all faces/surfaces of a 3D object. For a cube: SA = 6s². For a sphere: SA = 4πr². For a cylinder: SA = 2πr² + 2πrh.
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