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 A Bucket Plan to Go with Your Bucket List A bucket plan can help you be better prepared for a comfortable retirement. 9 Facts About Social Security There are things about Social Security that might surprise you. Investment Strategies for Retirement Investment tools and strategies that can enable you to pursue your retirement goals.