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 Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college. Social Security: The 64,000 Dollar Question One of the most common questions people ask about Social Security is when they should start taking benefits. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement.