UK inflation rate in 1840: 1.83%

UK Inflation Calculator


Inflation in 1840 and Its Effect on Pound Value

Purchasing power decreased by 1.83% in 1840 compared to 1839. On average, you would have to spend 1.83% more money in 1840 than in 1839 for the same item.

In other words, £1 in 1839 is equivalent in purchasing power to about £1.02 in 1840.

The 1839 inflation rate was 6.86%. The inflation rate in 1840 was 1.83%. The 1840 inflation rate is lower compared to the average inflation rate of 2.61% per year between 1840 and 2019.

Inflation rate is calculated by change in the composite price index (CPI). The CPI in 1840 was 11.10. It was 10.90 in the previous year, 1839. The difference in CPI between the years is used by the Office for National Statistics to officially determine inflation.

Inflation from 1839 to 1840
Average inflation rate 1.83%
Converted amount (£1 base) £1.02
Price difference (£1 base) £0.02
CPI in 1839 10.900
CPI in 1840 11.100
Inflation in 1839 6.86%
Inflation in 1840 1.83%

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

How to Calculate Inflation Rate for £1, 1839 to 1840

This inflation calculator uses the following inflation rate formula:

CPI in 1840CPI in 1839
1839 GBP value
1840 GBP value

Then plug in historical CPI values. The UK CPI was 10.9 in the year 1839 and 11.1 in 1840:


£1 in 1839 has the same "purchasing power" or "buying power" as £1.02 in 1840.

To get the total inflation rate for the 1 years between 1839 and 1840, we use the following formula:

CPI in 1840 - CPI in 1839CPI in 1839
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

11.1 - 10.910.9

News headlines from 1839

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

  • Indian tea arrives in the United Kingdom for the first time.
  • The details of the first photographic process are released by Louis Daguerre.
  • Beginning of the first Opium War in China.

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 1840 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 18 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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