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 Question Thank you! Oops! Related Content To Catch a Thief Having your identity stolen may result in financial loss plus the cost of trying to restore your good name. What is the Value of Your Business? Ascertaining the value of your business is important for a variety of reasons. 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.