$100 in 1923 is worth $641 in 1986,
because prices increased 540.9% over that period, an average of
2.99% a year.
$100 in 1923 has
the same buying power as
$641
in 1986
Detailed inflation statistics
Cumulative price change
540.9%
Average inflation rate
2.99% per year
Converted amount ($100 base)
$641
Price difference ($100 base)
$541
CPI in 1923
17.1
CPI in 1986
109.6
Inflation in 1923
1.79%
Inflation in 1986
1.86%
$100 in 1923 → 1986
$641
$100 in 1986 → 1923
$15.60
What happened to prices between 1923 and 1986
Between 1923 and 1986, the Consumer Price Index went from 17.1 to 109.6.
Cumulatively, prices increased 540.9%, which works out to an average of
2.99% per year. Put differently, a dollar in 1923 bought what
$0.16 buys in 1986: the 1923 dollar
lost 84.4% of its purchasing power over
these 63 years.
Consumer prices rose 1.8% in 1923, the first increase since 1920 and a sign
the postwar deflation had run its course; the economy settled into the
steadier growth that defined much of the rest of the decade. The year’s
biggest shock was political rather than economic: Warren Harding died August
2 in San Francisco while returning from a trip to Alaska, and Vice President
Calvin Coolidge was sworn in the next day at his family’s farmhouse in
Plymouth Notch, Vermont, administered the oath of office by his own father,
a notary public, by lamplight. Coolidge would go on to preside over the low,
stable inflation of the “Roaring Twenties.” The contrast with Germany that
year was stark. The Weimar Republic’s currency collapse reached its peak in
November 1923, with prices doubling every few days and a loaf of bread
costing billions of marks; Germany introduced a new currency, the
Rentenmark, that month to halt the spiral. U.S. consumer prices, by
comparison, had moved in single digits or held flat every year since 1921, a
gap that shaped how American economists would later think about what made
the postwar inflation of Europe so different from the mild swings at home.
First-class postage stayed at 2 cents.
Every 1923 amount converts to 1986 at the same ratio, 6.41: $1,000 becomes
$6,409, and $10,000 becomes $64,094.
Amount in 1923
Value in 1986
$1.00
$6.41
$5.00
$32.05
$10.00
$64.09
$20.00
$128
$50.00
$320
$100
$641
$500
$3,205
$1,000
$6,409
$5,000
$32,047
$10,000
$64,094
$100,000
$640,936
$1,000,000
$6,409,357
Inflation by spending category, 1923–1986
Between 1923 and 1986, food rose the most, up 607.8%, while apparel rose the least, up 290.8%, against 540.9% for all items. The headline number is an average; here is what $100 of 1923
spending costs in 1986, by category:
Category
Avg. yearly inflation
$100 in 1923 →
All items (CPI-U)
2.99%
$641
Food
3.16%
$708
Apparel
2.19%
$391
Not shown because the BLS began these indexes after 1923: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), medical care (1935–), transportation (1935–), recreation (1993–), education & communication (1993–).
Decade by decade: 1923 to 1986
Prices climbed fastest in the 1970s, averaging 7.82% a year, and fell in the 1930s (1.7% a year). Each step below chains into the full 1923–1986 change:
Years
Avg. yearly inflation
Price change
$100 from 1923, at end
1923–1930
-0.34%
-2.3%
$97.66
1930–1940
-1.75%
-16.2%
$81.87
1940–1950
5.58%
72.1%
$141
1950–1960
2.08%
22.8%
$173
1960–1970
2.74%
31.1%
$227
1970–1980
7.82%
112.4%
$482
1980–1986
4.87%
33.0%
$641
Year by year: CPI and the value of $100 from 1923
$100 from 1923 had already become $156 by
1953, on its way to $641 in 1986; each row shows the CPI, that
year's inflation rate, and the running value.
Within the span, inflation peaked at 14.4% in 1947, and prices fell 9.9% in 1932, the deepest deflation of the period.
Long periods are sampled every 5 years; the calculator above covers any pair of years.
The destination year: 1986
In 1986, prices rose 1.9% and $100 from 1923 had the buying
power of $641; the year's average CPI of 109.6 is the level
behind every 1986 figure on this page.
1986 delivered the decade’s biggest one-year drop in inflation, and it came
almost entirely from a single source: oil. Saudi Arabia abandoned its policy
of restraining output to prop up prices, and world crude collapsed from
about $27 a barrel to under $10 by midyear. Gasoline, which had averaged
$1.12 a gallon in 1985, fell to 86 cents. With energy costs plunging,
headline CPI inflation for the year came in at just 1.9%, the lowest annual
rate since 1965 and a striking bookend to 1980’s 13.5% peak. The relief was
uneven: prices for most goods and services outside energy kept rising at a
moderate pace, so households that didn’t drive much or heat with oil felt
less of the difference. In October, Congress passed the Tax Reform Act of
1986, a bipartisan overhaul that cut the top individual income tax rate from
50% to 28% while closing many deductions and shelters, the broadest rewrite
of the federal tax code since World War II. Between cheap gas and falling
interest rates, 1986 read like proof that the inflationary 1970s were a
closed chapter, six years after the U.S. economy had felt anything but
calm.
MLA: “Inflation from 1923 to 1986: $100 is worth $641 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1923-to-1986/
APA: InflationCalculator.com. Inflation from 1923 to 1986. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1923-to-1986/