Between 1955 and 1970, the Consumer Price Index went from 26.8 to 38.8.
Cumulatively, prices increased 44.8%, which works out to an average of
2.50% per year. Put differently, a dollar in 1955 bought what
$0.69 buys in 1970.
Common amounts: 1955 dollars in 1970
Amount in 1955
Value in 1970
$1.00
$1.45
$5.00
$7.24
$10.00
$14.48
$20.00
$28.96
$50.00
$72.39
$100
$145
$500
$724
$1,000
$1,448
$5,000
$7,239
$10,000
$14,478
$100,000
$144,776
$1,000,000
$1,447,761
Inflation by spending category, 1955–1970
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1955 spending costs in 1970, by category:
Category
Avg. yearly inflation
$100 in 1955 →
All items (CPI-U)
2.50%
$145
Medical care
4.25%
$187
Transportation
2.52%
$145
Food
2.32%
$141
Apparel
2.17%
$138
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 1970: $100 is worth $145 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1955-to-1970/
APA: InflationCalculator.com. Inflation from 1955 to 1970. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1955-to-1970/