My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content 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. Caring for Aging Parents As our nation ages, many Americans are turning their attention to caring for aging parents. To Catch a Thief Having your identity stolen may result in financial loss plus the cost of trying to restore your good name.