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 Four Steps to Valuing an Estate Determining the value of your estate, or for someone who has passed away, can be a complex undertaking. Countering Counterfeit Currency Combating counterfeiting remains core to preserving the integrity of the nation’s money. Five Most Overlooked Tax Deductions Five overlooked tax deductions to help manage your tax bill.