How do I make each square equal to one inch

to easily calculate I am trying to make each square 1 inch how do I do that

If you are talking about the viewport grid spacing, when you create a new document use one of the inch-based templates.

If you mean some other square then you are going to have to explain what you are talking about.

Regards
Jeremy

I did make it an inch based template but then on the x and y it showed me that every 4 spaces was an inch.

If you don’t like seeing the minor axes (0.25"), then you can change the document grid settings under Options:

Change the settings in an empty document and you can save as a new template, so you can get this setup for each new document.

HTH
Jeremy