Between 1921 and 1980, the Consumer Price Index went from 17.9 to 82.4.
Cumulatively, prices increased 360.3%, which works out to an average of
2.62% per year. Put differently, a dollar in 1921 bought what
$0.22 buys in 1980.
Common amounts: 1921 dollars in 1980
Amount in 1921
Value in 1980
$1.00
$4.60
$5.00
$23.02
$10.00
$46.03
$20.00
$92.07
$50.00
$230
$100
$460
$500
$2,302
$1,000
$4,603
$5,000
$23,017
$10,000
$46,034
$100,000
$460,335
$1,000,000
$4,603,352
Inflation by spending category, 1921–1980
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1921 spending costs in 1980, by category:
Category
Avg. yearly inflation
$100 in 1921 →
All items (CPI-U)
2.62%
$460
Food
2.92%
$546
Apparel
1.72%
$274
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–).
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 1921 to 1980: $100 is worth $460 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1921-to-1980/
APA: InflationCalculator.com. Inflation from 1921 to 1980. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1921-to-1980/