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 Message Thank you! Oops! Related Content Preparing For the Ultimate Vacation Make your retirement as exciting as your next vacation. Certain Uncertainties in Retirement The uncertainties we face in retirement can erode our sense of confidence. Retirement Plan Distributions There are a number of ways to withdraw money from a qualified retirement plan.