Between 1955 and 1973, the Consumer Price Index went from 26.8 to 44.4.
Cumulatively, prices increased 65.7%, which works out to an average of
2.84% per year. Put differently, a dollar in 1955 bought what
$0.60 buys in 1973.
Common amounts: 1955 dollars in 1973
Amount in 1955
Value in 1973
$1.00
$1.66
$5.00
$8.28
$10.00
$16.57
$20.00
$33.13
$50.00
$82.84
$100
$166
$500
$828
$1,000
$1,657
$5,000
$8,284
$10,000
$16,567
$100,000
$165,672
$1,000,000
$1,656,716
Inflation by spending category, 1955–1973
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1955 spending costs in 1973, by category:
Category
Avg. yearly inflation
$100 in 1955 →
All items (CPI-U)
2.84%
$166
Medical care
4.30%
$213
Food
3.10%
$173
Transportation
2.63%
$160
Apparel
2.30%
$151
Not shown because the BLS began these indexes after 1955: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), recreation (1993–), education & communication (1993–).
MLA: “Inflation from 1955 to 1973: $100 is worth $166 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1955-to-1973/
APA: InflationCalculator.com. Inflation from 1955 to 1973. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1955-to-1973/