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 Tuning Your Social Security Benefit When should you take your Social Security benefit? Tax Freedom Day Assess how many days you'll work to pay your federal tax liability. Putting a Price Tag On Your Health Being healthy not only makes you feel good, it may also help you financially.