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 Question Thank you! Oops! Related Content Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year. Mortgages in Retirement Explore the benefits and drawbacks to paying off your mortgage prior to retirement with this article. Financial Aid for Students 101 Help your college-bound child explore scholarships, grants, and more with this article on paying for higher education.