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? Inflation - Back to the Future Even low inflation rates over an extended period of time can impact your finances in retirement. An Inside Look at Retirement Living A number of questions and concerns need to be addressed to help you better prepare for retirement living.