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 Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college. Does Your Portfolio Fit Your Retirement Lifestyle? Lifestyle considerations in creating your retirement portfolio. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement.