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 How to Retire Early Retiring early sounds like a dream come true, but it’s important to take a look at the cold, hard facts. Thinking of Retiring Abroad? However exciting retiring abroad may sound, it deserves considerable planning. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement.