U.S. inflation · 1921–1977

Value of $100 in 1921, adjusted to 1977

$100 in 1921 has the same buying power as

$339

in 1977

$73$206$33919211935194919631977$100 · 1921$339 · 1977
Detailed inflation statistics
Cumulative price change238.5%
Average inflation rate2.20% per year
Converted amount ($100 base)$339
Price difference ($100 base)$239
CPI in 192117.9
CPI in 197760.6
Inflation in 1921-10.50%
Inflation in 19776.50%
$100 in 19211977$339
$100 in 19771921$29.54

What happened to prices between 1921 and 1977

Between 1921 and 1977, the Consumer Price Index went from 17.9 to 60.6. Cumulatively, prices increased 238.5%, which works out to an average of 2.20% per year. Put differently, a dollar in 1921 bought what $0.30 buys in 1977.

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 1977

Amount in 1921Value in 1977
$1.00$3.39
$5.00$16.93
$10.00$33.85
$20.00$67.71
$50.00$169
$100$339
$500$1,693
$1,000$3,385
$5,000$16,927
$10,000$33,855
$100,000$338,547
$1,000,000$3,385,475

Inflation by spending category, 1921–1977

The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1921 spending costs in 1977, by category:

Category Avg. yearly inflation $100 in 1921 →
All items (CPI-U) 2.20% $339
Food 2.56% $412
Apparel 1.55% $237

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

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

The destination year: 1977

Consumer prices rose 6.5% in 1977, ticking back up from 1976’s 5.8% as the economic recovery strengthened, wages climbed, and energy costs pushed higher again. The year opened with a warning about that energy dependence: record cold across the Midwest and Northeast in January and February strained natural gas supplies so badly that schools and factories in several states shut down for days to conserve fuel. Jimmy Carter, inaugurated that January, made energy policy a centerpiece of his presidency, and Congress created the cabinet-level Department of Energy that August to consolidate programs built up piecemeal since the 1973 oil embargo. Culture offered some relief from the anxiety: released that May, Star Wars became the highest-grossing film in history to that point, drawing lines around theater blocks for months. The year also closed an era in a different way. Elvis Presley was found dead at his Graceland home on August 16 at age 42, drawing tens of thousands of mourners to Memphis. A median household earned $13,572 in 1977, a new home sold for a median $48,800, and gas averaged 62 cents a gallon. Consumer prices stood 512.1% above their 1913 level, with the energy anxieties of the year setting up the harder shocks of 1978 and 1979.

More about inflation in 1977 →

Cite this page

MLA: “Inflation from 1921 to 1977: $100 is worth $339 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1921-to-1977/

APA: InflationCalculator.com. Inflation from 1921 to 1977. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1921-to-1977/

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.