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 Will Power Preparing for the eventual distribution of your assets may not sound enticing. But a will puts the power in your hands. Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns. Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate.