Between 1940 and 1980, the Consumer Price Index went from 14 to 82.4.
Cumulatively, prices increased 488.6%, which works out to an average of
4.53% per year. Put differently, a dollar in 1940 bought what
$0.17 buys in 1980.
Consumer prices rose 0.7% in 1940, snapping 1939’s decline
and marking the first increase since 1937. The gain was modest, and the CPI
still stood 18.1% below its 1929 peak, a reminder of how far
the recovery from the Depression’s trough had left to go even as defense
orders from Britain and France began reaching American factories. War was
already reshaping domestic policy well before it touched American soil.
Congress passed the Selective Training and Service Act that September, the
country’s first peacetime draft, requiring men aged 21 to 35 to register and
authorizing the induction of up to 900,000 men a year, more than a year
before Pearl Harbor. That November, Franklin Roosevelt won an unprecedented
third term, defeating Republican Wendell Willkie after campaigning on
keeping the United States out of the war then consuming Europe and Asia. The
promise would not hold much longer: within two years, wartime demand would
push consumer prices up faster than at any point since the aftermath of
World War I. First-class postage held at 3 cents, and the federal minimum
wage stayed at 30 cents an hour, the level set the previous October under
the Fair Labor Standards Act.
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1940 spending costs in 1980, by category:
Category
Avg. yearly inflation
$100 in 1940 →
All items (CPI-U)
4.53%
$589
Food
5.07%
$723
Medical care
5.06%
$720
Transportation
4.52%
$585
Apparel
3.63%
$417
Not shown because the BLS began these indexes after 1940: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), recreation (1993–), education & communication (1993–).
Long periods are sampled every 2 years; the calculator above covers any pair of years.
The destination year: 1980
1980 sat at the very peak of the Great Inflation. Prices rose 13.5% in that
single year, mortgage rates were climbing toward 16%, and the Federal Reserve
under Paul Volcker was administering the painful interest-rate medicine that
would finally break the inflationary spiral, at the cost of the deep 1981–82
recession. No single year looms larger in how Americans think about inflation.
MLA: “Inflation from 1940 to 1980: $100 is worth $589 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1940-to-1980/
APA: InflationCalculator.com. Inflation from 1940 to 1980. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1940-to-1980/