Most cage calculators take only the width, depth and height of cages into consideration when trying to calculate the number of rats the cage will hold.  However, on careful consideration this isn't very wise as the cage may not actually have enough *floor* space (i.e. shelves, etc) for the rats.  After all would you put the same amount of rats in a cage with only one shelf that has the same dimensions as another cage with say three shelves?  The first example wouldn't give the rats the same amount of floor space to spread out and run around on as the second example does.

Therefore, we have devised a calculator that takes shelf and floor space into consideration, and may give a slightly more accurate result as a consequence.  To use the calculator, you will need to know the width and depth of the bottom of the cage (the floor) as well as the width, depth and number of shelves in the cage.  Figures can be either inches or centimetres.

Click here for more help, if you are a bit confused!