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 Question Thank you! Oops! Related Content Building Your Legacy A four-step framework for building a personal legacy. Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. How Insurance Deductibles Work Knowing how insurance deductibles work can help you save money and give you peace of mind.