Retiring the 4% Rule A portfolio created with your long-term objectives in mind is crucial as you pursue your dream retirement. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content 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? Starting a Roth IRA for a Teen This early financial decision could prove helpful over time. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement.