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 How Insurance Deductibles Work Knowing how insurance deductibles work can help you save money and give you peace of mind. Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process. The Richest Man in Babylon In good times and bad, consistently saving a percentage of your income is a sound financial practice.