# U.S. inflation rate in 2011: 3.16%

## Inflation Calculator

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### Inflation since 2011 and its effect on dollar value

The consumer price index (CPI) in 2011 was 224.939. It was 218.056 in the previous year. This change in CPI is used by the Bureau of Labor Statistics to calculate inflation.

According to the Bureau of Labor Statistics consumer price index, the dollar experienced an average inflation rate of 1.61% per year. Prices in 2018 are 11.9% higher than prices in 2011.

In other words, \$100 in 2011 is equivalent in purchasing power to \$111.85 in 2018, a difference of \$11.85 over 7 years.

The current inflation rate is now 2.80%1. If this number holds, \$100 today will be equivalent to \$102.80 next year. The current inflation rate page gives more detail on the latest official inflation rates.

 Cumulative price change 11.85% Average inflation rate 1.61% Converted amount (\$100 base) \$111.85 Price difference (\$100 base) \$11.85 CPI in 2011 224.939 CPI in 2018 251.59

The above data describe the CPI for all items. Also of note is U.S. "Core Inflation," which measures the CPI for all items except for the more volatile categories of food and energy. Core inflation averaged 1.87% per year between 2011 and 2018. In 2011, core inflation was 1.66%.

#### Inflation rates for specific categories

Gasoline (all types) · Fish and seafood · Jewelry · More

S&P 500 price · S&P 500 earnings · Shiller P/E

### How to calculate the inflation rate for \$100 since 2011

This inflation calculator uses the following inflation rate formula:

CPI in 2018 / CPI in 2011 * 2011 USD value = 2018 USD value

Then plug in historical CPI values. The U.S. CPI was 224.939 in the year 2011 and 251.59 in 2018:

251.59 / 224.939 * \$100 = \$111.85

\$100 in 2011 has the same "purchasing power" or "buying power" as \$111.85 in 2018.

### Buying power of \$100 since 2011

Below are calculations of buying power over time for \$100 in 2011 (price index tracking began in 1913). Each of these USD amounts below is equivalent in terms of what it could buy at the time:

Year USD Value Inflation Rate
2011 \$100.00 3.16%
2012 \$102.07 2.07%
2013 \$103.56 1.46%
2014 \$105.24 1.62%
2015 \$105.37 0.12%
2016 \$106.70 1.26%
2017 \$108.82 1.99%
2018 \$111.85 2.78%*
* Not final. See inflation summary for latest details.