Between 1970 and 1980, the Consumer Price Index went from 38.8 to 82.4.
Cumulatively, prices increased 112.4%, which works out to an average of
7.82% per year. Put differently, a dollar in 1970 bought what
$0.47 buys in 1980.
Common amounts: 1970 dollars in 1980
Amount in 1970
Value in 1980
$1.00
$2.12
$5.00
$10.62
$10.00
$21.24
$20.00
$42.47
$50.00
$106
$100
$212
$500
$1,062
$1,000
$2,124
$5,000
$10,619
$10,000
$21,237
$100,000
$212,371
$1,000,000
$2,123,711
Inflation by spending category, 1970–1980
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1970 spending costs in 1980, by category:
Category
Avg. yearly inflation
$100 in 1970 →
All items (CPI-U)
7.82%
$212
Energy
12.93%
$337
Housing
8.34%
$223
Transportation
8.28%
$222
Food
8.27%
$221
Medical care
8.22%
$220
Core (all items less food & energy)
7.07%
$198
Apparel
4.38%
$154
Not shown because the BLS began these indexes after 1970: recreation (1993–), education & communication (1993–).
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 1970 to 1980: $100 is worth $212 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1970-to-1980/
APA: InflationCalculator.com. Inflation from 1970 to 1980. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1970-to-1980/