Inflation: Data on both the CPI and RPI inflation indices.Jump to full report >>
The Consumer Prices Index (CPI) is the main measure of inflation. It is produced in line with international standards and is the measure used for the Bank of England’s 2% inflation target. The Retail Prices Index (RPI) is no longer classified as a National Statistic as the way it is calculated does not meet international standards. It is included here as it is well-known and is the longest running measure of inflation.
The CPI inflation rate was 2.4% in September 2018, down from 2.7% in August 2018.
The RPI inflation rate was 3.3% in September 2018, down from 3.5% in August.
The largest downward contributions to the CPI over the past year came from food and drink (particularly meat and chocolate), transport, recreation and culture and clothing and footwear.
Commons Briefing papers SN02792
Author: Feargal McGuinness