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 Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. Exit Strategies of the Rich and Famous Estate conservation is too important to put off. Do you have a smart exit strategy? Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them.