Inflation Rate Calculator

Calculate annual and period inflation rates using Consumer Price Index (CPI) numbers. Measure cost-of-living increases.

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How to Use Inflation Rate Calculator (CPI Based)

  1. Enter Previous Period CPI (CPI1).
  2. Enter Current Period CPI (CPI2).
  3. View percentage headline inflation rate and point index delta.

Understanding CPI Inflation

The Consumer Price Index measures the average change over time in prices paid by urban consumers for a market basket of consumer goods and services.

Frequently Asked Questions

How is inflation rate calculated from CPI?
Inflation Rate (%) = [ (CPI2 - CPI1) / CPI1 ] × 100.