[CHAT] Aida conversion question

Hi! I’m about to start a new cross stitch project and my brain is just not mathing right now. I just bought a pattern off of Etsy and it’s saying it fits an 8 inch hoop (in length and width) on 18 count Aida. Now I only own 14 count Aida cloth. This maybe a simple conversion but how big is this piece going to be on 14 count? Appreciate any help!