Between 1955 and 1957, the Consumer Price Index went from 26.8 to 28.1.
Cumulatively, prices increased 4.9%, which works out to an average of
2.40% per year. Put differently, a dollar in 1955 bought what
$0.95 buys in 1957.
Common amounts: 1955 dollars in 1957
Amount in 1955
Value in 1957
$1.00
$1.05
$5.00
$5.24
$10.00
$10.49
$20.00
$20.97
$50.00
$52.43
$100
$105
$500
$524
$1,000
$1,049
$5,000
$5,243
$10,000
$10,485
$100,000
$104,851
$1,000,000
$1,048,507
Inflation by spending category, 1955–1957
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1955 spending costs in 1957, by category:
Category
Avg. yearly inflation
$100 in 1955 →
All items (CPI-U)
2.40%
$105
Medical care
4.04%
$108
Transportation
3.62%
$107
Food
1.96%
$104
Apparel
1.85%
$104
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 1957: $100 is worth $105 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1955-to-1957/
APA: InflationCalculator.com. Inflation from 1955 to 1957. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1955-to-1957/