Between 1956 and 1978, the Consumer Price Index went from 27.2 to 65.2.
Cumulatively, prices increased 139.7%, which works out to an average of
4.05% per year. Put differently, a dollar in 1956 bought what
$0.42 buys in 1978.
Common amounts: 1956 dollars in 1978
Amount in 1956
Value in 1978
$1.00
$2.40
$5.00
$11.99
$10.00
$23.97
$20.00
$47.94
$50.00
$120
$100
$240
$500
$1,199
$1,000
$2,397
$5,000
$11,985
$10,000
$23,971
$100,000
$239,706
$1,000,000
$2,397,059
Inflation by spending category, 1956–1978
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1956 spending costs in 1978, by category:
Category
Avg. yearly inflation
$100 in 1956 →
All items (CPI-U)
4.05%
$240
Medical care
5.53%
$327
Food
4.39%
$257
Transportation
3.97%
$235
Apparel
2.87%
$186
Not shown because the BLS began these indexes after 1956: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), recreation (1993–), education & communication (1993–).
MLA: “Inflation from 1956 to 1978: $100 is worth $240 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1956-to-1978/
APA: InflationCalculator.com. Inflation from 1956 to 1978. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1956-to-1978/