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 18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose? Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself. Your Shifting Risk Tolerance Time and market performance may subtly and slowly imbalance your portfolio.