Surface Area Calculator
Calculate the surface area of various 3D shapes instantly
Understanding Surface Area
Surface area is the total area of all faces of a three-dimensional object. It's an essential measurement in many fields, including engineering, architecture, and manufacturing.
Common Formulas:
Cube: SA = 6a², where a is the length of one edge
Sphere: SA = 4πr², where r is the radius
Cylinder: SA = 2πr² + 2πrh, where r is radius and h is height
Cone: SA = πr² + πr√(r² + h²), where r is radius and h is height