Comparing Mortgage Terms Estimate the total cost in today's dollars of various mortgage alternatives. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Lifetime of Earnings Estimate how much you have the potential to earn during your working years. 18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose? Countdown to College Preparing for college means setting goals, staying focused, and tackling a few key milestones along the way.