We have several calculators on this page. Calculator to help you know how much home you can afford. Calculator for Affordability based on your current rent payments (if you rent), and a calculator to see if you're better off renting or buying.
While these general calculators can give you an idea where you are - they don't take the place of an Accountant or Loan Officer. Take these as an idea where you are, but consult a pro before you start spending money.