Interested in a Fuel Efficient Car? Estimate how many months it may take to recover the out-of-pocket costs when buying a more efficient vehicle. 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 Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college. What Is My Current Cash Flow? Assess whether you are running “in the black” or “in the red” each month. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.