U.S. inflation rate in 2010: 1.64%

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Inflation in 2010 and Its Effect on Dollar Value

Purchasing power decreased by 1.64% in 2010 compared to 2009. On average, you would have to spend 1.64% more money in 2010 than in 2009 for the same item.

In other words, $1 in 2009 is equivalent in purchasing power to about $1.02 in 2010.

The 2009 inflation rate was -0.36%. The inflation rate in 2010 was 1.64%. The 2010 inflation rate is lower compared to the average inflation rate of 1.78% per year between 2010 and 2019.

Inflation rate is calculated by change in the consumer price index (CPI). The CPI in 2010 was 218.06. It was 214.54 in the previous year, 2009. The difference in CPI between the years is used by the Bureau of Labor Statistics to officially determine inflation.

Inflation from 2009 to 2010
Average inflation rate 1.64%
Converted amount ($1 base) $1.02
Price difference ($1 base) $0.02
CPI in 2009 214.537
CPI in 2010 218.056
Inflation in 2009 -0.36%
Inflation in 2010 1.64%

USD Inflation since 1913
Annual Rate, U.S. Bureau of Labor Statistics CPI

Inflation by City

Inflation can vary widely by city, even within the United States. Here's how some cities fared in 2009 to 2010 (figures shown are purchasing power equivalents of $1):

St Louis, Missouri experienced the highest rate of inflation during the 1 years between 2009 and 2010 (2.38%).

San Diego, California experienced the lowest rate of inflation during the 1 years between 2009 and 2010 (-0.02%).

Note that some locations showing 0% inflation may have not yet reported latest data.

Inflation by Country

Inflation can also vary widely by country. For comparison, in the UK £1.00 in 2009 would be equivalent to £1.05 in 2010, an absolute change of £0.05 and a cumulative change of 4.61%.

In Canada, CA$1.00 in 2009 would be equivalent to CA$1.02 in 2010, an absolute change of CA$0.02 and a cumulative change of 2.35%.

Compare these numbers to the US's overall absolute change of $0.02 and total percent change of 1.64%.

Inflation by Spending Category

CPI is the weighted combination of many categories of spending that are tracked by the government. This chart shows the average rate of inflation for select CPI categories between 2009 and 2010.

Compare these values to the overall average of 1.64% per year:

Category Avg Inflation (%) Total Inflation (%) $1 in 2009 → 2010
Food 0.77 0.77 1.01
Shelter -0.38 -0.38 1.00
Energy 9.45 9.45 1.09
Apparel -0.48 -0.48 1.00
New vehicles 1.76 1.76 1.02
Used cars and trucks 12.72 12.72 1.13
Transportation services 3.50 3.50 1.04
Medical care services 3.50 3.50 1.04
Medical care commodities 3.15 3.15 1.03

It's important to note that not all categories may be tracked since 2009. This table and visualization use the earliest available data for each category.

How to Calculate Inflation Rate for $1, 2009 to 2010

This inflation calculator uses the following inflation rate formula:

CPI in 2010CPI in 2009
2009 USD value
2010 USD value

Then plug in historical CPI values. The U.S. CPI was 214.537 in the year 2009 and 218.056 in 2010:


$1 in 2009 has the same "purchasing power" or "buying power" as $1.02 in 2010.

To get the total inflation rate for the 1 years between 2009 and 2010, we use the following formula:

CPI in 2010 - CPI in 2009CPI in 2009
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

218.056 - 214.537214.537

Alternate Measurements of Inflation

The above data describe the CPI for all items. Also of note is the Core CPI, which measures inflation for all items except for the more volatile categories of food and energy. Core inflation averaged 0.96% per year between 2009 and 2010 (vs all-CPI inflation of 1.64%), for an inflation total of 0.96%.

When using the core inflation measurement, $1 in 2009 is equivalent in buying power to $1.01 in 2010, a difference of $0.01. Recall that for All Items, the converted amount is $1.02 with a difference of $0.02.

In 2009, core inflation was 1.70%.

Chained CPI is an alternative measurement that takes into account how consumers adjust spending for similar items. Chained inflation averaged 1.42% per year between 2009 and 2010, a total inflation amount of 0.96%.

According to the Chained CPI measurement, $1 in 2009 is equal in buying power to $1.01 in 2010, a difference of $0.01 (versus a converted amount of $1.02/change of $0.02 for All Items).

In 2009, chained inflation was -0.47%.

Comparison to S&P 500 Index

To help put this inflation into perspective, if we had invested $1 in the S&P 500 index in 2009, our investment would be nominally worth approximately $1.55 in 2010. This is a return on investment of 55.17%, with an absolute return of $0.55.

These numbers are not inflation adjusted, so they are considered nominal. In order to evaluate the real return on our investment, we must calculate the return with inflation taken into account.

The compounding effect of inflation would account for 1.61% of returns ($0.01) during this period. This means the inflation-adjusted real return of our $1 investment is $0.54.

Investment in S&P 500 Index, 2009-2010
Original Amount Final Amount Change
Nominal $1 $1.55 55.17%
Inflation Adjusted
$1 $0.54 54.28%

News headlines from 2009

Politics and news often influence economic performance. Here's what was happening at the time:

  • Barack Obama is inaugurated as the 44th President of the United States.
  • An arrest warrant is issued for Omar Hassan al-Bashir, Sudanese President, by International Criminal Court, for war crimes and crimes against humanity. This is the first time a sitting head of state was indicted.
  • Chrysler, an automotive company, files for bankruptcy.

Data Source & Citation

Raw data for these calculations comes from the Bureau of Labor Statistics' (CPI), established in 1913. Inflation data from 1665 to 1912 is sourced from a historical study conducted by political science professor Robert Sahr at Oregon State University.

You may use the following MLA citation for this page: “Inflation Rate in 2010 | Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 23 May. 2019, https://www.officialdata.org/inflation-rate-in-2010.

Special thanks to QuickChart for providing downloadable chart images.

in2013dollars.com is a reference website maintained by the Official Data Foundation.

» Read more about inflation and investment.