Lifetime of Earnings Estimate how much you have the potential to earn during your working years. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content The Big Picture– Cracking Open a Six Pack Knowing your risks is essential when making investment decisions and exit decisions. 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? Mortgages in Retirement Explore the benefits and drawbacks to paying off your mortgage prior to retirement with this article.