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 Why Everyone Needs an Estate Strategy Do you have an estate strategy? You should. Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits.