Between 1975 and 1990, the Consumer Price Index went from 53.8 to 130.7.
Cumulatively, prices increased 142.9%, which works out to an average of
6.10% per year. Put differently, a dollar in 1975 bought what
$0.41 buys in 1990.
Common amounts: 1975 dollars in 1990
Amount in 1975
Value in 1990
$1.00
$2.43
$5.00
$12.15
$10.00
$24.29
$20.00
$48.59
$50.00
$121
$100
$243
$500
$1,215
$1,000
$2,429
$5,000
$12,147
$10,000
$24,294
$100,000
$242,937
$1,000,000
$2,429,368
Inflation by spending category, 1975–1990
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1975 spending costs in 1990, by category:
Category
Avg. yearly inflation
$100 in 1975 →
All items (CPI-U)
6.10%
$243
Medical care
8.56%
$343
Housing
6.40%
$253
Core (all items less food & energy)
6.34%
$251
Energy
6.08%
$243
Transportation
6.03%
$241
Food
5.44%
$221
Apparel
3.65%
$171
Not shown because the BLS began these indexes after 1975: recreation (1993–), education & communication (1993–).
In 1990, the median U.S. household earned about $29,900, gas averaged $1.15 a
gallon, and mailing a letter cost a quarter. Inflation ran hot at 5.4% for the
year, its highest rate since 1982, pushed up by an oil shock after Iraq’s
invasion of Kuwait, and the economy tipped into recession that summer. It was
the last gasp of elevated inflation before the long calm of the 1990s.
MLA: “Inflation from 1975 to 1990: $100 is worth $243 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1975-to-1990/
APA: InflationCalculator.com. Inflation from 1975 to 1990. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1975-to-1990/