Between 1966 and 1984, the Consumer Price Index went from 32.4 to 103.9.
Cumulatively, prices increased 220.7%, which works out to an average of
6.69% per year. Put differently, a dollar in 1966 bought what
$0.31 buys in 1984.
Common amounts: 1966 dollars in 1984
Amount in 1966
Value in 1984
$1.00
$3.21
$5.00
$16.03
$10.00
$32.07
$20.00
$64.14
$50.00
$160
$100
$321
$500
$1,603
$1,000
$3,207
$5,000
$16,034
$10,000
$32,068
$100,000
$320,679
$1,000,000
$3,206,790
Inflation by spending category, 1966–1984
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1966 spending costs in 1984, by category:
Category
Avg. yearly inflation
$100 in 1966 →
All items (CPI-U)
6.69%
$321
Energy
8.48%
$433
Medical care
8.10%
$406
Transportation
6.69%
$321
Core (all items less food & energy)
6.53%
$312
Food
6.40%
$305
Apparel
4.16%
$208
Not shown because the BLS began these indexes after 1966: housing (1967–), recreation (1993–), education & communication (1993–).
MLA: “Inflation from 1966 to 1984: $100 is worth $321 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1966-to-1984/
APA: InflationCalculator.com. Inflation from 1966 to 1984. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1966-to-1984/