18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? Share | Related Content A Bucket Plan to Go with Your Bucket List A bucket plan can help you be better prepared for a comfortable retirement. Immediate vs. Deferred Annuities Looking forward to retirement? It's critical to understand the difference between immediate and deferred annuities. Retirement Plan Distributions There are a number of ways to withdraw money from a qualified retirement plan.