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? Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Traditional vs. Roth IRA One or the other? Perhaps both traditional and Roth IRAs can play a part in your retirement plans. How to Bake a Pie-R-A Roth IRAs are tax-advantaged differently from traditional IRAs. Do you know how? Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable.