The difference in CPI and WPI: Wholesale Price Index (WPI) and Consumer Price Index (CPI) are two widely used indexes to calculate the inflation in the country. India uses the WPI index to calculate inflation while most of the countries use CPI for the same.
Difference CPI & WPI
Inflation is a market situation in which the price of goods and services increases consistently over a period of time. So inflation reduces the value of money hence too much money chases too few goods.
There are various methods to calculate inflation i.e. Wholesale Price Index (WPI), Consumer Price Index (CPI), Producer Price Index (PPI), Commodity Price Index, Cost of Living Index, Capital Goods Price Index and GDP Deflator. But WPI and CPI are widely used indexes to calculate inflation all over the world.
This article is explaining the differences between the WPI and CPI.
What is the Consumer Price Index (CPI)?
Consumer Price Index (CPI) is a price index that represents the average price of a basket of goods over time. CPI calculates the average price paid by the consumer to the shopkeepers.
Education, communication, transportation, recreation, apparel, foods and beverages, housing and medical care are the 8 groups for which the CPI is measured.
What Is Wholesale Price Index (WPI)?
Wholesale Price Index (WPI) is an indicator of price changes in the wholesale market. WPI calculates the price paid by the manufacturers and wholesalers in the market. WPI measures the changes in commodity price at selected stages before goods reach the retail level.
Difference between WPI and CPI is as follows;
Basis For Comparison
Wholesale Price Index (WPI)
Consumer Price Index (CPI)
WPI, amounts to the average change in prices of commodities at the wholesale level
CPI, indicates the average change in the prices of commodities, at the retail level.
Office of Economic Advisor (Ministry of Commerce & Industry)
Central Statistics Office (Ministry of Statistics and Programme Implementation)
Measures prices of
Goods and Services both
Measurement of Inflation
The first stage of the transaction
The final stage of the transaction
Prices paid by
Manufacturers and wholesalers
How many items covered
697 (Primary, fuel & power and manufactured products)
460 (Urban Basket)
What type of items covered
Manufacturing inputs and intermediate goods like minerals, machinery basic metals etc.
Education, communication, transportation, recreation, apparel, foods and beverages, housing and medical care
Only a few countries including India
Data released on
Primary articles, fuel, and power (Weekly basis) &
overall (monthly basis since 2012)
So from the above table, it must be clear that what are the differences between the CPI & WPI indexes. Here it is worth mentioning that CPI is a worldwide accepted mode of calculating the inflation as compared to the WPI