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. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Tax Efficiency in Retirement What role would taxes play in your investment decisions? A Penny Saved is Two Pennies Earned Here are some simple and inexpensive energy-saving tips that may help you save money. Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process.