This calculator requires the use of Javascript enabled and capable browsers. It is to determine the volume of an object. Select the object from the options then answer the questions about length and width or radius, base and height. All entries should be numeric. The answer is returned as a number of cubic units, based on your entries. In the listed formulae for this set of calculations, PI here is used as 3.1415929203539825. Enjoy! If you desire calculations on surface area of these same objects, try our surface area calculator or see other area and volume calculations here.