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 Navigating Retirement Pitfalls Why are they made again and again? Making sense of these errors in judgement. Assess Your Life Insurance Needs This calculator estimates how much life insurance you would need to meet your family's needs if you were to die prematurely. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.