Online Inflation Calculator

This calculator will show you how inflation has affected consumer buying power from a given base year to a given result year. Results are based on the annual average CPI (Consumer Price Index), as reported by the Bureau of Labor Statistics, for the years 1913 to 2013.

Dollar amount:
Base year:
Result year:
has the same buying power as


Alternative Inflation Measurement Sources

The above tool uses Consumer Price Index data from the United States Bureau of Labor Statistics (BLS). Some alternative data sources include:

  • Billion Price Project - a service from MIT alumni compiled from a database of online products. They also publish data at
  • Premise Data - database built from both an online scrape & hundreds of boots-on-the-ground individuals checking things like local produce pricing.
  • Shadow Stats - John Williams corrects for hedonic adjustments and similar impacts, skewing his inflation numbers significantly above the printed official CPI-U numbers.
  • Google Domestic Trends - built from sampling Google search traffic across specific sectors of the economy.

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