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 Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program. Retirement Realities Many pre-retirees can become focused on the “ideal” retirement, but turning that dream into a reality can be tricky. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss.