UK inflation rate in 1775: -6.67%

UK Inflation Calculator


Inflation in 1775 and Its Effect on Pound Value

Purchasing power increased by 6.67% in 1775 compared to 1774. On average, you would have to spend 6.67% less money in 1775 than in 1774 for the same item. This is an example of deflation.

In other words, £1 in 1774 is equivalent in purchasing power to about £0.93 in 1775.

The 1774 inflation rate was 1.35%. The inflation rate in 1775 was -6.67%. The 1775 inflation rate is lower compared to the average inflation rate of 2.10% per year between 1775 and 2019.

Inflation rate is calculated by change in the composite price index (CPI). The CPI in 1775 was 7.00. It was 7.50 in the previous year, 1774. The difference in CPI between the years is used by the Office for National Statistics to officially determine inflation. Because the 1775 CPI is less than 1774 CPI, negative inflation (also known as deflation) has occurred.

Inflation from 1774 to 1775
Average inflation rate -6.67%
Converted amount (£1 base) £0.93
Price difference (£1 base) £-0.07
CPI in 1774 7.500
CPI in 1775 7.000
Inflation in 1774 1.35%
Inflation in 1775 -6.67%

UK inflation chart from 1988 to 2017. Based on the UK Consumer Price Index.

How to Calculate Inflation Rate for £1, 1774 to 1775

This inflation calculator uses the following inflation rate formula:

CPI in 1775CPI in 1774
1774 GBP value
1775 GBP value

Then plug in historical CPI values. The UK CPI was 7.5 in the year 1774 and 7 in 1775:


£1 in 1774 has the same "purchasing power" or "buying power" as £0.93 in 1775.

To get the total inflation rate for the 1 years between 1774 and 1775, we use the following formula:

CPI in 1775 - CPI in 1774CPI in 1774
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

7 - 7.57.5

Data Source & Citation

Raw data for these calculations comes from the composite price index published by the UK Office for National Statistics (ONS). A composite index is created by combining price data from several different published sources, both official and unofficial. The Consumer Price Index, normally used to compute inflation, has only been tracked since 1988. All inflation calculations after 1988 use the Office for National Statistics' Consumer Price Index, except for 2017, which is based on The Bank of England's forecast.

You may use the following MLA citation for this page: “Inflation Rate in 1775 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 23 May. 2019,

Special thanks to QuickChart for providing downloadable chart images. is a reference website maintained by the Official Data Foundation.

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