How To Calculate Inflation Rates. The two most frequently cited indexes that calculate the inflation rate in the U.S. are the Consumer Price Index (CPI) and the Personal Consumption Expenditures ...

The inflation rate is inching higher, with Wall Street expecting tariffs to increase prices throughout the remainder of 2025.

So the Bureau of Labor Statistics — which calculates the CPI — uses a measure called owners’ equivalent rent, or OER. It accounts for around a quarter of the CPI.