18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents Social Security: By the Numbers Here are five facts about Social Security that might surprise you. Does Your Portfolio Fit Your Retirement Lifestyle? Lifestyle considerations in creating your retirement portfolio. An Inside Look at Retirement Living A number of questions and concerns need to be addressed to help you better prepare for retirement living.