U.S. inflation · 1921–1938

Value of $100 in 1921, adjusted to 1938

$100 in 1921 has the same buying power as

$78.77

in 1938

$73$86$10019211925193019341938$100 · 1921$79 · 1938
Detailed inflation statistics
Cumulative price change-21.2%
Average inflation rate-1.39% per year
Converted amount ($100 base)$78.77
Price difference ($100 base)-$21.23
CPI in 192117.9
CPI in 193814.1
Inflation in 1921-10.50%
Inflation in 1938-2.08%
$100 in 19211938$78.77
$100 in 19381921$127

What happened to prices between 1921 and 1938

Between 1921 and 1938, the Consumer Price Index went from 17.9 to 14.1. Cumulatively, prices declined 21.2%, which works out to an average of -1.39% per year. Put differently, a dollar in 1921 bought what $1.27 buys in 1938.

Consumer prices fell 10.5% in 1921, the mirror image of the wartime inflation that had more than doubled the cost of living between 1913 and 1920. The Depression of 1920-21, one of the sharpest contractions in U.S. history, bottomed out that July according to the National Bureau of Economic Research, even though it had lasted barely eighteen months. Unemployment climbed toward one worker in ten as businesses cut production and prices to work through wartime inventories, but the same collapse in prices also meant the recovery, once it started, had room to run without reigniting inflation. Warren Harding took office March 4, promising a return to “normalcy” after a decade of war, pandemic, labor unrest, and rapid price swings; his administration moved quickly to cut top income tax rates and federal spending. Congress also acted on immigration that year: the Emergency Quota Act, signed May 19, capped annual arrivals from each country at 3% of that nationality’s population in the 1910 census, the first time the United States had set a numerical ceiling on immigration. The law favored northern and western Europe and cut total immigration by more than half compared with prewar levels; Congress tightened the formula again in 1924. First-class postage held at 2 cents, unchanged since mid-1919.

More about inflation in 1921 →

Common amounts: 1921 dollars in 1938

Amount in 1921Value in 1938
$1.00$0.79
$5.00$3.94
$10.00$7.88
$20.00$15.75
$50.00$39.39
$100$78.77
$500$394
$1,000$788
$5,000$3,939
$10,000$7,877
$100,000$78,771
$1,000,000$787,709

Inflation by spending category, 1921–1938

The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1921 spending costs in 1938, by category:

Category Avg. yearly inflation $100 in 1921 →
All items (CPI-U) -1.39% $78.77
Food -1.59% $76.10
Apparel -2.42% $65.96

Not shown because the BLS began these indexes after 1921: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), medical care (1935–), transportation (1935–), recreation (1993–), education & communication (1993–).

Year by year: CPI and the value of $100 from 1921

Year CPI Inflation rate $100 from 1921
1921 17.9 -10.5% $100
1922 16.8 -6.1% $93.85
1923 17.1 1.8% $95.53
1924 17.1 0.0% $95.53
1925 17.5 2.3% $97.77
1926 17.7 1.1% $98.88
1927 17.4 -1.7% $97.21
1928 17.1 -1.7% $95.53
1929 17.1 0.0% $95.53
1930 16.7 -2.3% $93.30
1931 15.2 -9.0% $84.92
1932 13.7 -9.9% $76.54
1933 13 -5.1% $72.63
1934 13.4 3.1% $74.86
1935 13.7 2.2% $76.54
1936 13.9 1.5% $77.65
1937 14.4 3.6% $80.45
1938 14.1 -2.1% $78.77

The destination year: 1938

Consumer prices fell 2.1% in 1938, reversing most of 1937’s gain and interrupting four straight years of recovery from the Depression’s trough. The National Bureau of Economic Research dates the bottom of the downturn, which had begun that May, to June 1938, a sharp 13-month contraction that briefly pushed unemployment back up near 19%. Even in a year the economy was shrinking again, Congress passed one of the New Deal’s most lasting reforms. The Fair Labor Standards Act, signed June 25 and effective that October, established the first federal minimum wage, 25 cents an hour, capped the standard workweek at 44 hours with time-and-a-half overtime beyond it, and restricted the employment of children in most industries. The wage floor and hours limits applied only to workers engaged in interstate commerce at first, but they set a precedent that would expand in the decades that followed. Consumer prices stood 42.4% above their 1913 level and 17.5% below their 1929 peak, evidence of how far the recovery still had to go even eight years after the Depression began. First-class postage held at 3 cents.

More about inflation in 1938 →

Cite this page

MLA: “Inflation from 1921 to 1938: $100 is worth $78.77 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1921-to-1938/

APA: InflationCalculator.com. Inflation from 1921 to 1938. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1921-to-1938/

Source: U.S. Bureau of Labor Statistics, CPI-U annual averages (series CUUR0000SA0; category indexes listed on the data sources page). See how these numbers are calculated.