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? Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Buying Auto Insurance For Teen Drivers Tips on insuring your teen driver. Succeeding at Business Succession There are a number of reasons for business owners to consider a business succession plan sooner rather than later. Money that Buys Good Health is Never Ill Spent It's important to make sure your retirement strategy anticipates health-care expenses.