Application to calculate Area and Volume. Area Calculator to calculate. 1. Rectangle. 2. Parallelogram. 3. Square. 4. Triangle. 5. Circle. 6. Eclipse. 7. Trapezoid. Volume Calculator to calculate. 1. Cube. 2. Cylinder. 3. Sphere. 4. Cone. 5. Pyramid. 6. Prism. 7. Cuboid. 8. Torus. Unit conversion calculation function is also there.