What Is My Life Expectancy? Estimate how many years you may need retirement assets or how long to provide income to a surviving spouse or children. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Should You Borrow from Your 401(k)? Does it make sense to borrow from my 401(k) to pay off debt or to make a major purchase? Money that Buys Good Health is Never Ill Spent It's important to make sure your retirement strategy anticipates health-care expenses. RE: Retirement How does your ideal retirement differ from reality, and what can we do to better align the two?