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. Related Content Retirement Income and the Traditional Portfolio Experiencing negative returns early in retirement can potentially undermine the sustainability of your assets. Your Shifting Risk Tolerance Time and market performance may subtly and slowly imbalance your portfolio. 8 Financial Milestone Birthdays Get ready to celebrate your financial birthdays in this informative infographic.