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# £1 in 1820 → £1.10 in 1819

### U.K. Inflation Rate, £1 in 1820 to 1819

According to the Office for National Statistics composite price index, prices in 1819 are 10.26% higher than average prices since 1820. The British pound experienced an average deflation rate of -9.30% per year during this period, meaning the real value of a pound increased.

In other words, £1 in 1820 is equivalent in purchasing power to about £1.10 in 1819.

The 1819 inflation rate was -2.27%. The inflation rate in 1820 was -9.30%. The 1820 inflation rate is lower compared to the average inflation rate of 2.32% per year between 1820 and 2020.

 Average inflation rate -9.30% Converted amount (£1 base) £1.10 Price difference (£1 base) £0.10 CPI in 1820 11.700 CPI in 1819 12.900 Inflation in 1819 -2.27% Inflation in 1820 -9.30%

GBP Inflation since 1750
Annual Rate, the Office for National Statistics CPI

### How to Calculate Inflation Rate for £1, 1819 to 1820

This inflation calculator uses the following inflation rate formula:

CPI in 1819CPI in 1820
×
1820 GBP value
=
1819 GBP value

Then plug in historical CPI values. The U.K. CPI was 11.7 in the year 1820 and 12.9 in 1819:

12.911.7
×
£1
=
£1.10

£1 in 1820 has the same "purchasing power" or "buying power" as £1.10 in 1819.

To get the total inflation rate for the 1 years between 1819 and 1820, we use the following formula:

CPI in 1819 - CPI in 1820CPI in 1820
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

12.9 - 11.711.7
×
100
=
10%

### News headlines from 1819

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

• The Astronomical Society of London, is founded, it is now known as the Royal Astronomical Society.
• Fabian Gottlieb von Bellingshausen and Mikhail Lazarev discover Antarctica.

### 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: “£1 in 1820 → 1819 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 20 Jan. 2020, https://www.officialdata.org/1820-GBP-in-1819?amount=1.

Special thanks to QuickChart for providing downloadable chart images.

in2013dollars.com is a reference website maintained by the Official Data Foundation.

#### About the author

Ian Webster is an engineer and data expert based in San Mateo, California. He has worked for Google, NASA, and consulted for governments around the world on data pipelines and data analysis. Disappointed by the lack of clear resources on the impacts of inflation on economic indicators, Ian believes this website serves as a valuable public tool. Ian earned his degree in Computer Science from Dartmouth College.

 Average inflation rate -9.30% Converted amount (£1 base) £1.10 Price difference (£1 base) £0.10 CPI in 1820 11.700 CPI in 1819 12.900 Inflation in 1819 -2.27% Inflation in 1820 -9.30%