UK inflation rate in 1804: 2.73%

UK Inflation Calculator


Inflation in 1804 and Its Effect on Pound Value

Purchasing power decreased by 2.73% in 1804 compared to 1803. On average, you would have to spend 2.73% more money in 1804 than in 1803 for the same item.

In other words, £1 in 1803 is equivalent in purchasing power to about £1.03 in 1804.

The 1803 inflation rate was -5.17%. The inflation rate in 1804 was 2.73%. The 1804 inflation rate is higher compared to the average inflation rate of 2.16% per year between 1804 and 2019.

Inflation rate is calculated by change in the composite price index (CPI). The CPI in 1804 was 11.30. It was 11.00 in the previous year, 1803. The difference in CPI between the years is used by the Office for National Statistics to officially determine inflation.

Inflation from 1803 to 1804
Average inflation rate 2.73%
Converted amount (£1 base) £1.03
Price difference (£1 base) £0.03
CPI in 1803 11.000
CPI in 1804 11.300
Inflation in 1803 -5.17%
Inflation in 1804 2.73%

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

How to Calculate Inflation Rate for £1, 1803 to 1804

This inflation calculator uses the following inflation rate formula:

CPI in 1804CPI in 1803
1803 GBP value
1804 GBP value

Then plug in historical CPI values. The UK CPI was 11 in the year 1803 and 11.3 in 1804:


£1 in 1803 has the same "purchasing power" or "buying power" as £1.03 in 1804.

To get the total inflation rate for the 1 years between 1803 and 1804, we use the following formula:

CPI in 1804 - CPI in 1803CPI in 1803
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

11.3 - 1111

News headlines from 1803

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

  • John Hawkins and Richard French, patent the reaping machine
  • America makes the Louisiana Purchase.
  • The Surrey Iron Railway opens in London
  • The Louisiana Purchase is formally marked by the lowering of the French flag in New Orleans
  • 1978 Sweden introduces a ban on aerosols.
  • Over 30 countries ratify the Environmental Modification Convention, prohibiting weather warefare
  • Karol Wojtyla, Polish Cardinal, is elected as the new pope, taking the name Pope John Paul II
  • Iranian General Gholam Reza Azhari forms a military government placing Iran under military rule.
  • 918 members of Peoples Temple cult, led by Jim Jones, were murdered or committed suicide in Jonestown Guyana.

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 1804 | 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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