Surface Area Calculator
Calculate surface area for cube, sphere, cylinder, cone, rectangular prism, triangular prism, and pyramid with step-by-step solutions.
Calculator
Select a shape type and enter the required dimensions to calculate surface area.
Surface Area
0
Step-by-Step Solution
Complete User Guide
Surface Area Formulas
- Cube: SA = 6a²
- Sphere: SA = 4πr²
- Cylinder: SA = 2πr² + 2πrh = 2πr(r + h)
- Cone: SA = πr² + πrl = πr(r + l)
- Rectangular Prism: SA = 2(lw + lh + wh)
- Triangular Prism: SA = 2B + Ph
- Square Pyramid: SA = a² + 2al
Examples
Example 1: Cube
Input: Side = 5
Result: SA = 6 × 5² = 150
Example 2: Sphere
Input: Radius = 3
Result: SA = 4π × 3² ≈ 113.10