UK inflation rate in 1800: 36.36%

UK Inflation Calculator


UK Inflation Rate, 1800-2018 (£100)

The composite price index (CPI) in 1800 was 13.5. the Office for National Statistics uses this CPI value to track inflation on a monthly basis.

According to the Office for National Statistics composite price index, the pound experienced an average inflation rate of 2.04% per year. Prices in 2018 are 8022.9% higher than prices in 1800.

In other words, £100 in the year 1800 is equivalent in purchasing power to £8,122.90 in 2018, a difference of £8,022.90 over 218 years.

Compared to last year's annual rate, the inflation rate in 2018 is now 3.10%1. If this number holds, £100 today would be equivalent to £103.10 next year.

Inflation from 1800 to 2018
Cumulative price change 8022.90%
Average inflation rate 2.04%
Price difference (£100 base) £8,022.90
CPI in 1800 13.5
CPI in 2018 1096.59148

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

How to calculate the inflation rate for £100 since 1800

This inflation calculator uses the following inflation rate formula:

CPI in 2018 / CPI in 1800 * 1800 GBP value = 2018 GBP value

Then plug in historical CPI values. The UK CPI was 13.5 in the year 1800 and 1096.59148 in 2018:

1096.59148 / 13.5 * £100 = £8,122.90

£100 in 1800 has the same "purchasing power" as £8,122.90 in 2018.

News headlines from 1800

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.

Inflation Data Source

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 1800 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 24 May. 2018,

» Read more about inflation.