U.S. inflation · 1921–1978

Value of $100 in 1921, adjusted to 1978

$100 in 1921 has the same buying power as

$364

in 1978

$73$218$36419211935195019641978$100 · 1921$364 · 1978
Detailed inflation statistics
Cumulative price change264.2%
Average inflation rate2.29% per year
Converted amount ($100 base)$364
Price difference ($100 base)$264
CPI in 192117.9
CPI in 197865.2
Inflation in 1921-10.50%
Inflation in 19787.59%
$100 in 19211978$364
$100 in 19781921$27.45

What happened to prices between 1921 and 1978

Between 1921 and 1978, the Consumer Price Index went from 17.9 to 65.2. Cumulatively, prices increased 264.2%, which works out to an average of 2.29% per year. Put differently, a dollar in 1921 bought what $0.27 buys in 1978.

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 1978

Amount in 1921Value in 1978
$1.00$3.64
$5.00$18.21
$10.00$36.42
$20.00$72.85
$50.00$182
$100$364
$500$1,821
$1,000$3,642
$5,000$18,212
$10,000$36,425
$100,000$364,246
$1,000,000$3,642,458

Inflation by spending category, 1921–1978

The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1921 spending costs in 1978, by category:

Category Avg. yearly inflation $100 in 1921 →
All items (CPI-U) 2.29% $364
Food 2.69% $453
Apparel 1.59% $245

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
1923 17.1 1.8% $95.53
1925 17.5 2.3% $97.77
1927 17.4 -1.7% $97.21
1929 17.1 0.0% $95.53
1931 15.2 -9.0% $84.92
1933 13 -5.1% $72.63
1935 13.7 2.2% $76.54
1937 14.4 3.6% $80.45
1939 13.9 -1.4% $77.65
1941 14.7 5.0% $82.12
1943 17.3 6.1% $96.65
1945 18 2.3% $101
1947 22.3 14.4% $125
1949 23.8 -1.2% $133
1951 26 7.9% $145
1953 26.7 0.8% $149
1955 26.8 -0.4% $150
1957 28.1 3.3% $157
1959 29.1 0.7% $163
1961 29.9 1.0% $167
1963 30.6 1.3% $171
1965 31.5 1.6% $176
1967 33.4 3.1% $187
1969 36.7 5.5% $205
1971 40.5 4.4% $226
1973 44.4 6.2% $248
1975 53.8 9.1% $301
1977 60.6 6.5% $339
1978 65.2 7.6% $364

Long periods are sampled every 2 years; the calculator above covers any pair of years.

The destination year: 1978

Consumer prices rose 7.6% in 1978, accelerating for a second straight year as rising wages, a weakening dollar, and climbing energy costs outpaced the Federal Reserve’s response. Fed chairman G. William Miller, appointed by Carter that March, kept interest rates too low to slow the trend, a policy later cited as one reason inflation kept building toward the following year’s crisis. California voters responded to their own version of the problem that June, passing Proposition 13 by nearly two to one to cap property tax rates after years of rising home values had pushed tax bills up alongside them. Foreign policy delivered one of the decade’s genuine breakthroughs: President Carter brought Egyptian President Anwar Sadat and Israeli Prime Minister Menachem Begin together for thirteen days of negotiations at Camp David that September, producing a framework for peace between the two countries that was signed as a treaty the following March. First-class postage rose to 15 cents that May 29, a rate that would hold longer than any other in the decade. The year ended in tragedy: cult leader Jim Jones directed the mass murder-suicide of more than 900 followers at a remote settlement in Guyana that November 18. A median household earned $15,064 in 1978, a new home sold for a median $55,700, and gas averaged 63 cents a gallon. Consumer prices stood 558.6% above their 1913 level, with the decade’s worst inflation still to come.

More about inflation in 1978 →

Cite this page

MLA: “Inflation from 1921 to 1978: $100 is worth $364 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1921-to-1978/

APA: InflationCalculator.com. Inflation from 1921 to 1978. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1921-to-1978/

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.