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? Address Thank you! Oops! Related Contents Rightsizing for Retirement What does your home really cost? What Is a Stretch IRA? If you have a traditional IRA, you may have the opportunity to extend its tax-deferred status across multiple generations. Investment Strategies for Retirement Investment tools and strategies that can enable you to pursue your retirement goals.