The procedure to use the volume of cuboid calculator is as follows: Step 1: Enter the length, width and height in the input field. Step 2: Now click the button "Solve" to get the volume. Step 3: Finally, the volume of a cuboid will be displayed in the output field. Volume = 4cm x 3cm x 3cm. So in this example volume = 36cm3. Here are the other cuboids that also have a volume of 36cm3: Q0Fpn.