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? Share | Related Content RE: Retirement How does your ideal retirement differ from reality, and what can we do to better align the two? Three Key Questions to Answer Before Taking Social Security When to start? Should I continue to work? How can I maximize my benefit? An Inside Look at Retirement Living A number of questions and concerns need to be addressed to help you better prepare for retirement living.