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. Home Ownership by the Numbers Tips on home-buying for Millennials. An Inside Look at Retirement Living A number of questions and concerns need to be addressed to help you better prepare for retirement living.