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 Sequence of Returns A look at how variable rates of return impact investors over time. Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns. What is the Value of Your Business? Ascertaining the value of your business is important for a variety of reasons.