£1 in 1800 → £0.73 in 1799

UK Inflation Calculator


UK Inflation Rate, £1 in 1800 to 1799

According to the Office for National Statistics composite price index, prices in 1799 are 26.67% lower than average prices throughout 1800. The pound experienced an average inflation rate of 36.36% per year during this period, meaning the real value of a dollar decreased.

In other words, £1 in 1800 is equivalent in purchasing power to about £0.73 in 1799.

The 1799 inflation rate was 12.50%. The inflation rate in 1800 was 36.36%. The 1800 inflation rate is higher compared to the average inflation rate of 2.04% per year between 1800 and 2019.

Inflation from 1800 to 1799
Average inflation rate 36.36%
Converted amount (£1 base) £0.73
Price difference (£1 base) £-0.27
CPI in 1800 13.500
CPI in 1799 9.900
Inflation in 1799 12.50%
Inflation in 1800 36.36%

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

How to Calculate Inflation Rate for £1, 1799 to 1800

This inflation calculator uses the following inflation rate formula:

CPI in 1799CPI in 1800
1800 GBP value
1799 GBP value

Then plug in historical CPI values. The UK CPI was 13.5 in the year 1800 and 9.9 in 1799:


£1 in 1800 has the same "purchasing power" or "buying power" as £0.73 in 1799.

To get the total inflation rate for the 1 years between 1799 and 1800, we use the following formula:

CPI in 1799 - CPI in 1800CPI in 1800
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

9.9 - 13.513.5

News headlines from 1799

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

  • First session of Congress held at under-construction Capitol building in Washington D.C.
  • First cowpox vaccination (for smallpox prevention) in the United States. The vaccine was given by Dr Benjamin Waterhouse to his son.
  • The free African American community of Philadelphia submits its first petition to US Congress for the abolition of slavery.
  • Barnaba Niccoclo Maria Luigi Chiaramonti elected pope, taking the name Pope Pius VII.
  • A Smallpox vaccine is invented by Doctor Benjamin Waterhouse leading to the first immunization against the disease.
  • Congress holds its first session in the, at the time, still incomplete Capitol building in Washington D.C.
  • The French army defeats the Turks at Helipolis, after which they advanced on to Cairo.

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 1800 → 1799 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 25 Apr. 2019, https://www.officialdata.org/1800-GBP-in-1799?amount=1.

Special thanks to QuickChart for providing downloadable chart images.

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

» Read more about inflation and investment.