$100 in 1984 is worth $206 in 2009,
because prices increased 106.5% over that period, an average of
2.94% a year.
$100 in 1984 has
the same buying power as
$206
in 2009
Detailed inflation statistics
Cumulative price change
106.5%
Average inflation rate
2.94% per year
Converted amount ($100 base)
$206
Price difference ($100 base)
$106
CPI in 1984
103.9
CPI in 2009
214.537
Inflation in 1984
4.32%
Inflation in 2009
-0.36%
$100 in 1984 → 2009
$206
$100 in 2009 → 1984
$48.43
What happened to prices between 1984 and 2009
Between 1984 and 2009, the Consumer Price Index went from 103.9 to 214.537.
Cumulatively, prices increased 106.5%, which works out to an average of
2.94% per year. Put differently, a dollar in 1984 bought what
$0.48 buys in 2009: the 1984 dollar
lost 51.6% of its purchasing power over
these 25 years.
1984 was the year the recovery became a boom. Real GDP grew 7.2%, the
fastest calendar-year growth since 1951, as the tax cuts passed in 1981
combined with falling interest rates and rebuilding consumer confidence.
Unemployment, which had topped 10.8% just two years earlier, fell below
7.5%. Inflation ticked up to 4.3% from 3.2% the year before, but nothing
close to a return of the 1970s wage-price spiral: the Federal Reserve under
Paul Volcker kept policy tight enough to hold the line while growth ran hot.
The strength of the expansion, branded “Morning in America” in President
Reagan’s reelection campaign, carried him to a 49-state landslide over
Walter Mondale that November, at the time the widest electoral-vote margin
in U.S. history. For households, the numbers behind the slogan were
concrete: median income rose to about $22,400, and a gallon of gas cost
$1.13, roughly what it had cost three years earlier even as wages kept
climbing. The contrast with 1980, when 13.5% inflation and interest rates
near 20% had defined the economy, could not have been sharper.
Every 1984 amount converts to 2009 at the same ratio, 2.06: $1,000 becomes
$2,065, and $10,000 becomes $20,648.
Amount in 1984
Value in 2009
$1.00
$2.06
$5.00
$10.32
$10.00
$20.65
$20.00
$41.30
$50.00
$103
$100
$206
$500
$1,032
$1,000
$2,065
$5,000
$10,324
$10,000
$20,648
$100,000
$206,484
$1,000,000
$2,064,841
Inflation by spending category, 1984–2009
Between 1984 and 2009, medical care rose the most, up 251.7%, while apparel rose the least, up 17.6%, against 106.5% for all items. The headline number is an average; here is what $100 of 1984
spending costs in 2009, by category:
Category
Avg. yearly inflation
$100 in 1984 →
All items (CPI-U)
2.94%
$206
Medical care
5.16%
$352
Food
3.04%
$211
Core (all items less food & energy)
3.00%
$210
Housing
3.00%
$210
Energy
2.63%
$191
Transportation
2.21%
$173
Apparel
0.65%
$118
Not shown because the BLS began these indexes after 1984: recreation (1993–), education & communication (1993–).
Decade by decade: 1984 to 2009
Prices climbed fastest in the 1980s, averaging 3.90% a year, and slowest in the 2000s (2.47% a year). Each step below chains into the full 1984–2009 change:
Years
Avg. yearly inflation
Price change
$100 from 1984, at end
1984–1990
3.90%
25.8%
$126
1990–2000
2.80%
31.8%
$166
2000–2009
2.47%
24.6%
$206
Year by year: CPI and the value of $100 from 1984
$100 from 1984 had already become $151 by
1996, on its way to $206 in 2009; each row shows the CPI, that
year's inflation rate, and the running value.
Within the span, inflation peaked at 5.4% in 1990, and prices fell 0.4% in 2009, the deepest deflation of the period.
In 2009, prices fell 0.4% and $100 from 1984 had the buying
power of $206; the year's average CPI of 214.537 is the level
behind every 2009 figure on this page.
2009 is the rarest kind of year in the modern price data: one where the cost
of living went down. The CPI fell 0.4%, the first full-year deflation
since 1955, as the Great Recession hollowed out demand and oil unwound from
its $147 spike the summer before. Gasoline that had cost over $4 a gallon in
July 2008 averaged $2.35 in 2009, and that energy collapse dragged the
12-month inflation rate to −2.1% by July, the deepest reading since 1950.
Policymakers treated falling prices not as relief but as a warning: deflation
raises the real weight of debt precisely when households are drowning in it,
which is why the Federal Reserve pinned interest rates near zero, began buying
bonds by the hundreds of billions, and Washington passed a $787 billion
stimulus. The medicine took: prices stabilized within a year, and 2009 remains
the textbook case of why central banks fear deflation more than moderate
inflation.
MLA: “Inflation from 1984 to 2009: $100 is worth $206 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1984-to-2009/
APA: InflationCalculator.com. Inflation from 1984 to 2009. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1984-to-2009/