There is a topic here that shows how you can see how much space you are using.
Guess I will just get a trial and try it out.
I have another question, not sure I should start a new topic of not. But let's say I connect 2 computers with lightroom to a network drive if I edit a picture on one computer would it show on the other or should I do an update folder. I know before cc we had to do this.
All adjustments in Lightroom are stored in the catalog, not in the image file itself. And the catalog must be on a local drive. the catalog cannot be on a network drive. So changes made on one computer will not automatically be shown on the other. Some people try to use Dropbox for their catalog and they report success. But you have to make sure one computer completely synchronizes the update before you try to access the catalog on the other computer. It's very easy to corrupt the catalog. The best way is to have the catalog and images on an external hard drive that you can switch from one computer to the other.