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 Life and Death of a Twenty Dollar Bill How long does a $20 bill last? Four Really Good Reasons to Invest There are four very good reasons to start investing. Do you know what they are? A Fruitful Retirement: Social Security Benefit Taking your Social Security benefits at the right time may help maximize your benefit.