How do you calculate the volume of a box-shaped object?
length x width x height for example a 3 inch long box that is 3 inches wide and 3 inches high would be 3x3x3=27 cubic inches
To calculate the volume of an irregular object you will need a container with meaurements and water. Place the irregular object in your container and fill with water until the entire object is covered. Record volume A. Then remove the irregular object and record volume B. The volume of your irregulare object is equal to volume A minus volume B.
You cannot calculate the volume of an object using only the density; you must also calculate the mass. You can calculate the mass by simply weighing the object. Density = Mass / Volume Therefore Volume = Mass/Density. If you cannot be bothered to calculate the mass, simply measure the object. Multiply the length, times the width, times the height and you have the volume.
The density of a non-uniform object can be found by using its mass and volume. The volume can be measured by placing the object in volumetric glassware filled with water. The increase in volume is equal to the volume of the object. The object can then be weighed using a scale. The density of the object will be given by the ratio of mass / volume.