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 Message Thank you! Oops! Related Content The Power of Compound Interest Learn how to harness the power of compound interest for your investments. Forecast This short video helps explain why markets can be as unpredictable as the weather. Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college.