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. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content What is Guaranteed Retirement Income? Get the facts about guaranteed retirement income. How Income Taxes Work A quick look at how federal income taxes work. Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns.