The Pyramid Calculator contains equations related to objects shaped like a geometric pyramid. Triangle Based PyramidPolygon based pyramid Pyramid FrustumPolygon pyramid frustum This includes equations for volume and mass. Pyramids can have bases of triangles, squared and polygons. The pyramids can be full pyramids or frustums. A frustum is made by parallel planes slicing through an object. The equations in this calculator include formula for the volume and mass of pyramid shaped objects.