A Fruitful Retirement: Social Security Benefit Taking your Social Security benefits at the right time may help maximize your benefit. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents 18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? The Pre-Retirement Checklist This checklist can give you a quick snapshot of how prepared you are. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates.