Wolfram|Alpha has dodecahedron volume calculators. Solve problems related to the volume of augmented, augmented truncated, Bilinski, disdyakis, elongated, metabiaugmented, metabiaugmented truncated, parabiaugmented, parabiaugmented truncated, pentakis, rhombic, trapezo-rhombic, triaugmented, triaugmented truncated and truncated dodecahedra, and endododecahedra.
