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 Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. The Value of Insuring Against Life’s Risks Building wealth requires protection from the forces of wealth destruction. Diversification, Patience, and Consistency Three important factors when it comes to your financial life.