This calculator provides information about the value of money in different years in the US economy based on historical CPI (consumer price index) data found at https://fred.stlouisfed.org.
Also computes the Compound Annual Growth Rate (CAGR) the inflation generated. This is the annual percentage return needed just for the original balance to maintain the same level of purchasing power. If you are interested in how CAGR works, see our Rate of Return calculator.
For more about inflation see our article Inflation - Why Prices Usually Go Up.
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