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 Preparing For the Ultimate Vacation Make your retirement as exciting as your next vacation. 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.