$100 in 2005 is worth $115 in 2011,
because prices increased 15.2% over that period, an average of
2.38% a year.
$100 in 2005 has
the same buying power as
$115
in 2011
Detailed inflation statistics
Cumulative price change
15.2%
Average inflation rate
2.38% per year
Converted amount ($100 base)
$115
Price difference ($100 base)
$15.18
CPI in 2005
195.3
CPI in 2011
224.939
Inflation in 2005
3.39%
Inflation in 2011
3.16%
$100 in 2005 → 2011
$115
$100 in 2011 → 2005
$86.82
What happened to prices between 2005 and 2011
Between 2005 and 2011, the Consumer Price Index went from 195.3 to 224.939.
Cumulatively, prices increased 15.2%, which works out to an average of
2.38% per year. Put differently, a dollar in 2005 bought what
$0.87 buys in 2011: the 2005 dollar
lost 13.2% of its purchasing power over
these 6 years.
Inflation rose to 3.4% in 2005, up from 2.7% in 2004, as gasoline averaged $2.30 a gallon,
compared with $1.88 the year before. Hurricane Katrina made landfall on August 29, and with
Hurricane Rita weeks later it disrupted Gulf Coast refining, pushing the national average
price past $3 in early September. The Federal Reserve raised its policy rate at every meeting,
from 2.25% to 4.25%, to keep energy costs from feeding into other prices. The median household
earned about $46,300, up 4.5% from 2004, but the median new home price rose a further 9%, to
$240,900. In April, Congress passed a bankruptcy law that made it harder to clear debts. A
first-class stamp stayed at 37 cents until January 2006, and the federal minimum wage stayed
at $5.15.
Every 2005 amount converts to 2011 at the same ratio, 1.15: $1,000 becomes
$1,152, and $10,000 becomes $11,518.
Amount in 2005
Value in 2011
$1.00
$1.15
$5.00
$5.76
$10.00
$11.52
$20.00
$23.04
$50.00
$57.59
$100
$115
$500
$576
$1,000
$1,152
$5,000
$5,759
$10,000
$11,518
$100,000
$115,176
$1,000,000
$1,151,761
Inflation by spending category, 2005–2011
Between 2005 and 2011, energy rose the most, up 37.7%, while apparel rose the least, up 2.2%, against 15.2% for all items. The headline number is an average; here is what $100 of 2005
spending costs in 2011, by category:
Category
Avg. yearly inflation
$100 in 2005 →
All items (CPI-U)
2.38%
$115
Energy
5.48%
$138
Medical care
3.63%
$124
Transportation
3.39%
$122
Food
3.01%
$119
Education & communication
2.45%
$116
Core (all items less food & energy)
1.91%
$112
Housing
1.90%
$112
Recreation
0.59%
$104
Apparel
0.36%
$102
Decade by decade: 2005 to 2011
Prices climbed fastest in the 2010s, averaging 3.16% a year, and slowest in the 2000s (2.23% a year). Each step below chains into the full 2005–2011 change:
Years
Avg. yearly inflation
Price change
$100 from 2005, at end
2005–2010
2.23%
11.7%
$112
2010–2011
3.16%
3.2%
$115
Year by year: CPI and the value of $100 from 2005
$100 from 2005 had already become $110 by
2008, on its way to $115 in 2011; each row shows the CPI, that
year's inflation rate, and the running value.
Within the span, inflation peaked at 3.8% in 2008, and prices fell 0.4% in 2009, the deepest deflation of the period.
In 2011, prices rose 3.2% and $100 from 2005 had the buying
power of $115; the year's average CPI of 224.939 is the level
behind every 2011 figure on this page.
2011 brought the fastest inflation of the post-recession recovery. Consumer
prices rose 3.2%, roughly double the 2010 pace, and the cause was mostly at the
pump and the grocery store. Unrest across the Middle East and North Africa,
including the war in Libya, pushed gasoline to an annual average of $3.52 a
gallon, the highest yearly figure recorded to that point. Food prices also
rose faster than the overall index.
Household budgets did not keep up. The median household income was $50,054,
barely above the year before, and the median new home sold for about $227,200.
The federal minimum wage stayed at $7.25 and a first-class stamp at 44 cents.
Policy stayed loose. The Federal Reserve kept its policy rate near zero and
launched Operation Twist in September to lower long-term rates. Washington
spent the summer in a debt-ceiling fight that ended in S&P’s August downgrade
of the U.S. credit rating. The inflation spike proved temporary: the
2011 rate was the high point of the early 2010s, and prices grew more slowly
in every year that followed until 2017.
MLA: “Inflation from 2005 to 2011: $100 is worth $115 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/2005-to-2011/
APA: InflationCalculator.com. Inflation from 2005 to 2011. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/2005-to-2011/