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 Retiring Wild: National Parks and You Get ready to enjoy America’s national park system with this helpful article. Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself. Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year.