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 Saving for College 101 Here’s a crash course on saving for college. Life and Death of a Twenty Dollar Bill How long does a $20 bill last? The Cost of Procrastination Procrastination can be costly. When you get a late start, it may be difficult to make up for lost time.