My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. 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 4 Elements of an Estate Strategy Learn about the importance of having an estate strategy in this helpful and informative video. Exploring the Federal Student Grant Program In this article, explore the benefits of the Federal Student Grant Program. 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?