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 Historical Inflation This calculator shows how inflation over the years has impacted purchasing power. The Cost of Procrastination Procrastination can be costly. When you get a late start, it may be difficult to make up for lost time. Why do Renters Have to Save More? How much more would retirement cost if you owned your home rather than rented? It could actually be several times less.