This calculator requires the use of Javascript enabled and capable browsers. It is to determine the volume of a cone. Answer the questions about radius 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 this or other objects, try our surface area calculator or see other area and volume calculations here.