How much purchasing power has been lost (or gained) between any two years? Uses official U.S. CPI data from 1928 through 2024.
$100 in 1970 has the same purchasing power as
$793
in 2024
Total change
+693%
Avg annual
3.91%
Years
54
The U.S. Consumer Price Index (CPI) measures the average change in prices paid by urban consumers for a basket of goods and services. This calculator uses year-over-year CPI changes published by the U.S. Bureau of Labor Statistics to translate a dollar amount from one year into its equivalent purchasing power in another year. For formulas and data sources, see the How We Calculate page.