18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose? Share | Related Content A Fruitful Retirement: Social Security Benefit Taking your Social Security benefits at the right time may help maximize your benefit. The SECURE Act This article may help you understand the most recent changes to your IRA and your RMD implemented with the SECURE Act. Inflation & Retirement Estimate how much income may be needed at retirement to maintain your standard of living.