18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? Share | Related Content Ready for Retirement? Are you ready for retirement? Here are five words you should consider. What Is an Annuity? Annuities are versatile tools that can help you save for retirement and generate income in retirement. An Inside Look at Retirement Living A number of questions and concerns need to be addressed to help you better prepare for retirement living.