18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? Share | Related Content Tuning Your Social Security Benefit When should you take your Social Security benefit? 6 Strategies to Help You Prepare for Living on Retirement Explore financial strategies that may help you prepare for living on a fixed budget during retirement on My Retirement Walk. An Inside Look at Retirement Living A number of questions and concerns need to be addressed to help you better prepare for retirement living.