Ive written a VBA program that does a few calculations and includes InputBoxes. It works fine when I input realistic values, however if I use extreme values (i.e. very very large numbers), an error message appears.

The error message says Run time error 6, overflow.

So how would I go about converting that error message into a custom error message saying "Please use realistic numbers" or something similar, and then going back to the start of the Sub.

Thanks.