I have a .php file that I need to be on a Wordpress page. (it's a calculator if your wondering) I'm not exactly sure how I can call this .php file to the page so it works. Any ideas?
You should be able to just include it in the template. Have you tried? Generally, though, I would recommend you code it into a plugin
If you really just want to call it into a page just use something like: <?php include("./myfile.php"); ?> Code (markup): to include it in the page.
I already tried that but I figured it out. Instead of placing the php file in a page I made the file it's own page. I uploaded the .php file to the root folder of my site on the server, typed in the location of the file in the address bar and it worked.