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. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents 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? Three Key Questions to Answer Before Taking Social Security When to start? Should I continue to work? How can I maximize my benefit? A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.