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 The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding. What is the Value of Your Business? Ascertaining the value of your business is important for a variety of reasons. Required Reading: The Economic Report of the President The Economic Report of the President can help identify the forces driving — or dragging — the economy.