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? Address Thank you! Oops! Related Contents What Our Kids Can Teach us About Saving Money Would you guess that Millennials are effectively saving for retirement? Well, they are. Life and Death of a Twenty Dollar Bill How long does a $20 bill last? Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card.