Moving library from PC to Mac

I did do a search, but apparently I am not good at that!
We are a PC family, and I have my Calibre library on all of them. Easy peasy, just copy the library over to the new PC. But, my son is talking about moving over to the Mac side for some of them, since they are getting older.
So my question is: Can I just copy my Calibre library and Paste it onto the Mac like I do between PCs? If not, if I have to re-do my whole Calibre library it might just be a deal breaker.
S