$100 in 1951 is worth $641 in 1999,
because prices increased 540.8% over that period, an average of
3.95% a year.
$100 in 1951 has
the same buying power as
$641
in 1999
Detailed inflation statistics
Cumulative price change
540.8%
Average inflation rate
3.95% per year
Converted amount ($100 base)
$641
Price difference ($100 base)
$541
CPI in 1951
26
CPI in 1999
166.6
Inflation in 1951
7.88%
Inflation in 1999
2.21%
$100 in 1951 → 1999
$641
$100 in 1999 → 1951
$15.61
What happened to prices between 1951 and 1999
Between 1951 and 1999, the Consumer Price Index went from 26 to 166.6.
Cumulatively, prices increased 540.8%, which works out to an average of
3.95% per year. Put differently, a dollar in 1951 bought what
$0.16 buys in 1999: the 1951 dollar
lost 84.4% of its purchasing power over
these 48 years.
Consumer prices rose 7.9% in 1951, up sharply from 1950’s
1.3% and the fastest increase since 1947, as Korean War buying and a
defense spending surge hit an economy still adjusting to peacetime. Much
of the jump came early in the year, before the government stepped in: the
Office of Price Stabilization imposed a general ceiling on prices January
26, and the Wage Stabilization Board froze wages soon after, the broadest
peacetime controls since the war began that June. The year’s more lasting
change came in monetary policy. On March 4, the Treasury and the Federal
Reserve signed the Accord, ending the Fed’s wartime obligation to hold
down interest rates on government bonds and freeing the central bank to
fight inflation on its own terms for the first time since 1942, a shift
that would shape Fed independence for decades. Congress raised taxes that
October to help pay for the war: the Revenue Act of 1951, signed October
20, lifted individual and corporate income taxes along with a range of
excise taxes, the third increase in taxes since fighting began in Korea.
Consumer prices finished 1951 162.6% above their 1913
level. First-class postage held at 3 cents, and the minimum wage stayed at
75 cents an hour.
Every 1951 amount converts to 1999 at the same ratio, 6.41: $1,000 becomes
$6,408, and $10,000 becomes $64,077.
Amount in 1951
Value in 1999
$1.00
$6.41
$5.00
$32.04
$10.00
$64.08
$20.00
$128
$50.00
$320
$100
$641
$500
$3,204
$1,000
$6,408
$5,000
$32,038
$10,000
$64,077
$100,000
$640,769
$1,000,000
$6,407,692
Inflation by spending category, 1951–1999
Between 1951 and 1999, medical care rose the most, up 1476.1%, while apparel rose the least, up 199.1%, against 540.8% for all items. The headline number is an average; here is what $100 of 1951
spending costs in 1999, by category:
Category
Avg. yearly inflation
$100 in 1951 →
All items (CPI-U)
3.95%
$641
Medical care
5.91%
$1,576
Transportation
3.80%
$599
Food
3.74%
$582
Apparel
2.31%
$299
Not shown because the BLS began these indexes after 1951: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), recreation (1993–), education & communication (1993–).
Decade by decade: 1951 to 1999
Prices climbed fastest in the 1970s, averaging 7.82% a year, and slowest in the 1950s (1.45% a year). Each step below chains into the full 1951–1999 change:
Years
Avg. yearly inflation
Price change
$100 from 1951, at end
1951–1960
1.45%
13.8%
$114
1960–1970
2.74%
31.1%
$149
1970–1980
7.82%
112.4%
$317
1980–1990
4.72%
58.6%
$503
1990–1999
2.73%
27.5%
$641
Year by year: CPI and the value of $100 from 1951
$100 from 1951 had already become $207 by
1975, on its way to $641 in 1999; each row shows the CPI, that
year's inflation rate, and the running value.
Within the span, inflation peaked at 13.5% in 1980, and prices fell 0.4% in 1955, the deepest deflation of the period.
Long periods are sampled every 2 years; the calculator above covers any pair of years.
The destination year: 1999
In 1999, prices rose 2.2% and $100 from 1951 had the buying
power of $641; the year's average CPI of 166.6 is the level
behind every 1999 figure on this page.
The median household earned about $40,700 in 1999, gas averaged $1.17 a gallon, and a new home
cost roughly $161,000. Inflation ran at 2.2% for the year, ticking back up from 1998’s decade low
as oil prices recovered from their collapse. The decade closed with two changes to the financial
system that would shape the one after it: on January 1, the euro launched as an accounting
currency across 11 European countries, trading alongside national currencies like the French
franc and German mark ahead of physical cash in 2002, and in November, Congress passed the
Gramm-Leach-Bliley Act, tearing down the Depression-era wall between commercial banks, investment
banks, and insurers. Stock markets, meanwhile, were absorbed in a boom of their own: the Nasdaq
surged through the year on soaring internet-stock valuations, and the Federal Reserve raised
interest rates three times in the second half of 1999 partly to cool the exuberance, even as it
pumped extra liquidity into the banking system to guard against any disruption from the Y2K
rollover. A first-class stamp cost 33 cents. Inflation had spent the decade falling from 1990’s
5.4% peak to averages closer to 2-3%, and 1999 closed it out almost exactly where the 1990s as a
whole had settled.
MLA: “Inflation from 1951 to 1999: $100 is worth $641 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1951-to-1999/
APA: InflationCalculator.com. Inflation from 1951 to 1999. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1951-to-1999/