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 Retiring in a Post-Pandemic World Imagine your ideal post-pandemic retirement with this animated video. Choices for Your 401(k) at a Former Employer Individuals have three basic choices with the 401(k) account they accrued at a previous employer. Inflation & Retirement Estimate how much income may be needed at retirement to maintain your standard of living.