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! Test Your Investment Knowledge! How much do you know about investing? Take our quiz and find out instantly. First Name Last Name Email Address Thank you! Oops! Related Content Consider Keeping Your Life Insurance When You Retire Reasons to retain your coverage into your retirement years. Errors and Omissions Insurance E&O insurance is specifically designed to protect you, or your company, from the risk of a client’s dissatisfaction. 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?