U.S. inflation rate in 1921: -10.50%

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U.S. Inflation Rate, 1921-2017 ($1)

The consumer price index (CPI) in 1921 was 17.9. the Bureau of Labor Statistics uses this CPI value to track inflation on a monthly basis.

According to the Bureau of Labor Statistics, the dollar experienced an average inflation rate of 2.76% per year. Prices in 2017 are 1268.0% higher than prices in 1921.

In other words, $1 in the year 1921 is equivalent to $13.68 in 2017, a difference of $12.68 over 96 years.

The current inflation rate in 2017 is 1.99%1. If this number holds, $1 today will be equivalent to $1.02 next year.

Inflation from 1921 to 2017
Cumulative price change 1268.00%
Average inflation rate 2.76%
Price difference ($1 base) $12.68
CPI in 1921 17.9
CPI in 2017 244.786


U.S. inflation from 1913 to 2017


Inflation rates for specific categories

Bananas · Film and photographic supplies · Gasoline (all types) · More

Inflation-adjusted measures

S&P 500 price · S&P 500 earnings · Shiller P/E

How to calculate the inflation rate for $1 since 1921

Start with the inflation rate formula:

CPI in 2017 / CPI in 1921 * 1921 USD value = 2017 USD value

Then plug in historical CPI values. The U.S. CPI was 17.9 in the year 1921 and 244.786 in 2017:

244.786 / 17.9 * $1 = $13.68

$1 in 1921 has the same "purchasing power" as $13.68 in 2017.


News headlines from 1921

Politics and news often play an important role in economic performance.

  • The Chinese Communist Party is founded by Chen Duxiu.
  • Alice Mary Robertson becomes the first woman to preside over the United States House of Representatives.
  • Adolf Hitler is declared leader of the National Socialist German Workers Party.

Inflation Data Source: The Bureau of Labor Statistics' (CPI), established in 1913. Inflation data from 1665 to 1912 is sourced from a historical study conducted by political science professor Robert Sahr at Oregon State University.


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