Surface Area Calculator

Calculate the surface area of various 3D shapes including cubes, spheres, cylinders, cones, and rectangular prisms

Calculator

Results

Enter dimensions and click calculate to see results

Understanding Surface Area

Basic Shapes

  • Cube: 6 × side²
  • Sphere: 4π × radius²
  • Cylinder: 2πr² + 2πrh
  • Cone: πr² + πrs
  • Rectangular Prism: 2(lw + lh + wh)

Key Concepts

  • Total vs. Lateral Area
  • Base Area importance
  • Units are squared
  • All dimensions must be positive
  • Use consistent units

Applications

  • Architecture and construction
  • Packaging design
  • Material requirements
  • Heat transfer calculations
  • Cost estimation