Historical UK inflation

rates and calculator

Historical prices can be converted into equivalent present-day prices by using historical inflation rates. Use the calculator below to convert prices between any year in the range 1751 to 2018. You can also embed the calculator on your own website.

Inflation rate history

The following table shows the annual inflation rate for each year between 1751 and 2018. The number under the Multiplier column is the cumulative inflation rate — the amount by which to multiply or divide in order to convert between prices in that year and 2018.

Data for 1949 onwards comes from the Office for National Statistics document RPI All Items: Percentage change over 12 months . Data for 1751 to 1948 comes from the 2004 paper Consumer Price Inflation Since 1750 ( ISSN 0013-0400, Economic Trends No. 604, pp 38-46) by Jim O’Donoghue, Louise Goulding, and Grahame Allen.