\$21.72 in 2015 → \$22.71 in 2018

Inflation Calculator

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U.S. Inflation Rate, 2015-2018 (\$21.72)

According to the Bureau of Labor Statistics consumer price index, the dollar experienced an average inflation rate of 1.50% per year. Prices in 2018 are 4.6% higher than prices in 2015.

In other words, \$21.72 in the year 2015 is equivalent in purchasing power to \$22.71 in 2018, a difference of \$0.99 over 3 years.

The current inflation rate in 2018 is 1.26%1. If this number holds, \$21.72 today will be equivalent to \$21.99 next year.

 Cumulative price change 4.56% Average inflation rate 1.50% Price difference (\$21.72 base) \$0.99 CPI in 2015 237.017 CPI in 2018 247.867

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How to calculate the inflation rate for \$21.72 since 2015

CPI in 2018 / CPI in 2015 * 2015 USD value = 2018 USD value

Then plug in historical CPI values. The U.S. CPI was 237.017 in the year 2015 and 247.867 in 2018:

247.867 / 237.017 * \$21.72 = \$22.71

\$21.72 in 2015 has the same "purchasing power" as \$22.71 in 2018.