Between 1970 and 1975, the Consumer Price Index went from 38.8 to 53.8.
Cumulatively, prices increased 38.7%, which works out to an average of
6.76% per year. Put differently, a dollar in 1970 bought what
$0.72 buys in 1975.
Common amounts: 1970 dollars in 1975
Amount in 1970
Value in 1975
$1.00
$1.39
$5.00
$6.93
$10.00
$13.87
$20.00
$27.73
$50.00
$69.33
$100
$139
$500
$693
$1,000
$1,387
$5,000
$6,933
$10,000
$13,866
$100,000
$138,660
$1,000,000
$1,386,598
Inflation by spending category, 1970–1975
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1970 spending costs in 1975, by category:
Category
Avg. yearly inflation
$100 in 1970 →
All items (CPI-U)
6.76%
$139
Energy
10.55%
$165
Food
8.81%
$153
Medical care
6.92%
$140
Housing
6.85%
$139
Transportation
5.96%
$134
Core (all items less food & energy)
5.73%
$132
Apparel
4.14%
$122
Not shown because the BLS began these indexes after 1970: recreation (1993–), education & communication (1993–).
MLA: “Inflation from 1970 to 1975: $100 is worth $139 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1970-to-1975/
APA: InflationCalculator.com. Inflation from 1970 to 1975. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1970-to-1975/