UK inflation rate in 1841: -1.80%

UK Inflation Calculator


Inflation in 1841 and Its Effect on Pound Value

Purchasing power increased by 1.80% in 1841 compared to 1840. On average, you would have to spend 1.80% less money in 1841 than in 1840 for the same item. This is an example of deflation.

In other words, £1 in 1840 is equivalent in purchasing power to about £0.98 in 1841.

The 1840 inflation rate was 1.83%. The inflation rate in 1841 was -1.80%. The 1841 inflation rate is lower compared to the average inflation rate of 2.64% per year between 1841 and 2019.

Inflation rate is calculated by change in the composite price index (CPI). The CPI in 1841 was 10.90. It was 11.10 in the previous year, 1840. The difference in CPI between the years is used by the Office for National Statistics to officially determine inflation. Because the 1841 CPI is less than 1840 CPI, negative inflation (also known as deflation) has occurred.

Inflation from 1840 to 1841
Average inflation rate -1.80%
Converted amount (£1 base) £0.98
Price difference (£1 base) £-0.02
CPI in 1840 11.100
CPI in 1841 10.900
Inflation in 1840 1.83%
Inflation in 1841 -1.80%

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

How to Calculate Inflation Rate for £1, 1840 to 1841

This inflation calculator uses the following inflation rate formula:

CPI in 1841CPI in 1840
1840 GBP value
1841 GBP value

Then plug in historical CPI values. The UK CPI was 11.1 in the year 1840 and 10.9 in 1841:


£1 in 1840 has the same "purchasing power" or "buying power" as £0.98 in 1841.

To get the total inflation rate for the 1 years between 1840 and 1841, we use the following formula:

CPI in 1841 - CPI in 1840CPI in 1840
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

10.9 - 11.111.1

News headlines from 1840

Politics and news often influence economic performance. Here's what was happening at the time:

  • Identification of Antarctica as a new continent by American naval expedition lead by Charles Wilkes.
  • Charles Wilkes discovers Antarctica in an American naval expedition.
  • Charles Wilkes discovers the Shackleton Ice Shelf in Antarctica.
  • The world’s first postage stamp, the Penny Black, is released.
  • Samuel Morse patents the telegraph.

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 1841 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 21 Apr. 2019,

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

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