🔲 Surface Area Calculator
Calculate the surface area of cubes, spheres, cylinders, and cones.
Surface Area Formulas
Cube: 6s². Sphere: 4πr². Cylinder: 2πr(r + h). Cone: πr(r + l) where l is the slant height. Surface area measures the total area of all surfaces of a 3D object and is measured in square units.
Real-World Uses
Surface area calculations are important for painting (how much paint needed), wrapping (packaging material), heat transfer (radiators, cooling fins), and manufacturing (material costs for shells and containers).
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