$21.72 in 2010 → $25.10 in 2018

Inflation Calculator

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U.S. Inflation Rate, $21.72 in 2010 to 2018

According to the Bureau of Labor Statistics consumer price index, prices in 2018 are 15.58% higher than prices in 2010. The dollar experienced an average inflation rate of 1.83% per year during this period.

In other words, $21.72 in 2010 is equivalent in purchasing power to $25.10 in 2018, a difference of $3.38 over 8 years.

The 2010 inflation rate was 1.64%. The current inflation rate (2017 to 2018) is now 2.18%1. If this number holds, $21.72 today will be equivalent to $22.19 next year. The current inflation rate page gives more detail on the latest official inflation rates.


Inflation from 2010 to 2018
Cumulative price change 15.58%
Average inflation rate 1.83%
Converted amount ($21.72 base) $25.10
Price difference ($21.72 base) $3.38
CPI in 2010 218.056
CPI in 2018 252.038
Inflation in 2010 1.64%
Inflation in 2018 2.18%


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

Buying power of $21.72 since 2010

This chart shows calculations of buying power equivalence over time for $21.72 in 2010 (price index tracking began in 1635).

According to the Bureau of Labor Statistics, each of these USD amounts below is equal in terms of what it could buy at the time:

Year USD Value Inflation Rate
2010 $21.72 1.64%
2011 $22.41 3.16%
2012 $22.87 2.07%
2013 $23.20 1.46%
2014 $23.58 1.62%
2015 $23.61 0.12%
2016 $23.91 1.26%
2017 $24.42 2.13%
2018 $25.10 2.82%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.

Inflation by City

Inflation can vary widely by city, even within the United States. Here's how some cities fared in 2010 to 2018 (figures shown are purchasing power equivalents of $21.72):

San Diego, California experienced the highest rate of inflation during the 8 years between 2010 and 2018 (2.95%).

Philadelphia, Pennsylvania experienced the lowest rate of inflation during the 8 years between 2010 and 2018 (1.26%).

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 £21.72 in 2010 would be equivalent to £27.05 in 2018, an absolute change of £5.33 and a cumulative change of 24.53%.

In Canada, CA$21.72 in 2010 would be equivalent to CA$24.64 in 2018, an absolute change of CA$2.92 and a cumulative change of 13.45%.

Compare these numbers to the US's overall absolute change of $3.38 and total percent change of 15.58%.


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 2010 and 2018.

Compare these values to the overall average of 1.83% per year:

Category Avg Inflation (%) Total Inflation (%) $21.72 in 2010 → 2018
Food 1.80 15.38 25.06
Shelter 2.70 23.71 26.87
Energy 0.51 4.13 22.62
Apparel 0.68 5.54 22.92
New vehicles 0.76 6.22 23.07
Used cars and trucks -0.41 -3.21 21.02
Transportation services 2.67 23.46 26.82
Medical care services 2.91 25.82 27.33
Medical care commodities 2.44 21.23 26.33

It's important to note that not all categories may be tracked since 2010. This table and visualization use the earliest available data for each category.



How to Calculate Inflation Rate for $21.72 since 2010

This inflation calculator uses the following inflation rate formula:

CPI in 2018CPI in 2010
×
2010 USD value
=
2018 USD value

Then plug in historical CPI values. The U.S. CPI was 218.056 in the year 2010 and 252.038 in 2018:

252.038218.056
×
$21.72
=
$25.10

$21.72 in 2010 has the same "purchasing power" or "buying power" as $25.10 in 2018.

To get the total inflation rate for the 8 years between 2010 and 2018, we use the following formula:

CPI in 2018 - CPI in 2010CPI in 2010
×
100
=
Cumulative inflation rate (8 years)

Plugging in the values to this equation, we get:

252.038 - 218.056218.056
×
100
=
16%

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 1.90% per year between 2010 and 2018 (vs all-CPI inflation of 1.83%), for an inflation total of 16.27%.

When using the core inflation measurement, $21.72 in 2010 is equivalent in buying power to $25.25 in 2018, a difference of $3.53. Recall that for All Items, the converted amount is $25.10 with a difference of $3.38.

In 2010, core inflation was 0.96%.

Chained CPI is an alternative measurement that takes into account how consumers adjust spending for similar items. Chained inflation averaged 1.55% per year between 2010 and 2018, a total inflation amount of 16.27%.

According to the Chained CPI measurement, $21.72 in 2010 is equal in buying power to $24.56 in 2018, a difference of $2.84 (versus a converted amount of $25.10/change of $3.38 for All Items).

In 2010, chained inflation was 1.42%.


Comparison to S&P 500 Index

The average inflation rate of 1.83% has a compounding effect between 2010 and 2018. As noted above, this yearly inflation rate compounds to produce an overall price difference of 15.58% over 8 years.

To help put this inflation into perspective, if we had invested $21.72 in the S&P 500 index in 2010, our investment would be nominally worth approximately $60.50 in 2018. This is a return on investment of 178.53%, with an absolute return of $38.78.

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 13.48% of returns ($5.23) during this period. This means the inflation-adjusted real return of our $21.72 investment is $33.55.

Investment in S&P 500 Index, 2010-2018
Original Amount Final Amount Change
Nominal $21.72 $60.50 178.53%
Real
Inflation Adjusted
$21.72 $33.55 154.45%


News headlines from 2010

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

  • The Copiapo mining accident in Chile ends, after 33 miners resurface having spent 69 days trapped in the ruins.
  • Big Haiti earthquake kills 230,000 people and leaves most of Port-au-Prince, its capital, in ruins.
  • An explosion on the Deepwater Horizon (a drilling rig), kills 11 people and spills a massive amount of oil into the Gulf of Mexico.
  • The US army abolishes the "Don't Ask Don't Tell" policy, which had banned homosexuals from openly serving in the US military.

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: “$21.72 in 2010 → 2018 | Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 15 Dec. 2018, https://www.officialdata.org/2010-dollars-in-2018?amount=21.72.

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


» Read more about inflation and investment.