According to the Bureau of Labor Statistics consumer price index, the dollar experienced an average inflation rate of 1.73% per year. Prices in 2018 are 5.3% higher than prices in 2015.
In other words, $21.72 in the year 2015 is equivalent in purchasing power to $22.87 in 2018, a difference of $1.15 over 3 years.
Compared to last year's annual rate, the inflation rate in 2018 is now 1.95%1. If this number holds, $21.72 today would be equivalent to $22.14 next year. The current inflation rate page gives more detail on the latest official inflation rates.
|Cumulative price change||5.29%|
|Average inflation rate||1.73%|
|Price difference ($21.72 base)||$1.15|
|CPI in 2015||237.017|
|CPI in 2018||249.554|
Politics and news often influence economic performance. Here's what was happening at the time:
Raw data for these calculations comes from the Bureau of Labor Statistics' Consumer Price Index (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 2015 → 2018 | Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 23 May. 2018, https://www.officialdata.org/2015-dollars-in-2018?amount=21.72.