Between 1931 and 1990, the Consumer Price Index went from 15.2 to 130.7.
Cumulatively, prices increased 759.9%, which works out to an average of
3.71% per year. Put differently, a dollar in 1931 bought what
$0.12 buys in 1990.
Consumer prices fell 9.0% in 1931, a sharp acceleration from the 2.3% decline
in 1930, as falling wages, collapsing farm prices, and a fresh
wave of bank failures fed a downward spiral that the still-contracting
economy could not shake. More than 2,000 banks failed during the year, far
more than in 1930, as depositors who had watched earlier banks go under
pulled their cash out of ones they feared were next. The crisis went
international that September, when Britain suspended the gold standard amid
a run on sterling. The Federal Reserve’s response made the domestic downturn
worse before it made anything better: to defend the dollar’s own gold
backing, the Fed raised its discount rate sharply that October, in two steps
from 1.5% to 3.5%, tightening credit at the exact moment the economy needed
the opposite. Not every headline that year was grim. The Empire State
Building opened its doors on May 1, briefly the tallest building in the
world, though so much of Manhattan’s office space sat vacant amid the
Depression that tenants stayed scarce and New Yorkers took to calling it the
“Empty State Building.” Consumer prices had now fallen for two straight
years and stood 53.5% above their 1913 level, down from the
68.7% margin of just twelve months before. First-class postage remained at 2
cents.
The headline number is an average. Individual categories moved very differently over this
period. Here is what $100 of 1931 spending costs in 1990, by category:
Category
Avg. yearly inflation
$100 in 1931 →
All items (CPI-U)
3.71%
$860
Food
4.03%
$1,026
Apparel
2.98%
$564
Not shown because the BLS began these indexes after 1931: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), medical care (1935–), transportation (1935–), recreation (1993–), education & communication (1993–).
Long periods are sampled every 2 years; the calculator above covers any pair of years.
The destination year: 1990
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 1931 to 1990: $100 is worth $860 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1931-to-1990/
APA: InflationCalculator.com. Inflation from 1931 to 1990. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1931-to-1990/