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 | Related Content 18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? Retirement Traps to Avoid Beware of these traps that could upend your retirement. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement.