This historic inflation calculator uses official UK inflation data to show how prices ... has changed between 1900 and 2023. It uses annual RPI inflation ¿ the figure with the longest running ...

Gathering data on consumer prices and the products we’re really buying will become far more precise, giving a better picture ...

The Retail Price Index (RPI) is a measure of inflation in the UK that tracks changes in the cost of a fixed basket of goods and services, including housing costs such as mortgage interest payments.

Partly for this reason, a 2012 survey of international approaches to measuring inflation found that none of the 30 countries surveyed applied the formula used in the UK's RPI measure. In summary ...