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 Life and Death of a Twenty Dollar Bill How long does a $20 bill last? Acres of Diamonds In life it often happens that the answers to our most pressing questions are right in our own backyards. Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year.