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? Related Content Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last. Bull and Bear Go To Market Learn about the difference between bulls and bears—markets, that is! Understanding the Basics of Medigap Policies Important as it is, Medicare does not cover the full range of health-care expenses you may experience in your golden years.