Inflation & Retirement Estimate how much income may be needed at retirement to maintain your standard of living. 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 Inflation and the Real Rate of Return Learn about the role of inflation when considering your portfolio’s rate of return with this helpful article. 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? 4 Steps to Protecting a Child with Disabilities Planning for a child with special needs can be complicated, confusing, and even overwhelming.