Historical Inflation This calculator shows how inflation over the years has impacted purchasing power. 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 The Average American Budget Learn about the average American budget in this fun and interactive piece. Should I Buy or Lease an Auto? This calculator compares the financial impact of leasing versus buying an automobile. The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding.