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# UK inflation rate in 1808: 4.07%

### Inflation in 1808 and Its Effect on Pound Value

Purchasing power decreased by 4.07% in 1808 compared to 1807. On average, you would have to spend 4.07% more money in 1808 than in 1807 for the same item.

In other words, £1 in 1807 is equivalent in purchasing power to about £1.04 in 1808.

The 1807 inflation rate was -2.38%. The inflation rate in 1808 was 4.07%. The 1808 inflation rate is higher compared to the average inflation rate of 2.14% per year between 1808 and 2019.

Inflation rate is calculated by change in the composite price index (CPI). The CPI in 1808 was 12.80. It was 12.30 in the previous year, 1807. The difference in CPI between the years is used by the Office for National Statistics to officially determine inflation.

 Average inflation rate 4.07% Converted amount (£1 base) £1.04 Price difference (£1 base) £0.04 CPI in 1807 12.300 CPI in 1808 12.800 Inflation in 1807 -2.38% Inflation in 1808 4.07%

### How to Calculate Inflation Rate for £1, 1807 to 1808

This inflation calculator uses the following inflation rate formula:

CPI in 1808CPI in 1807
×
1807 GBP value
=
1808 GBP value

Then plug in historical CPI values. The UK CPI was 12.3 in the year 1807 and 12.8 in 1808:

12.812.3
×
£1
=
£1.04

£1 in 1807 has the same "purchasing power" or "buying power" as £1.04 in 1808.

To get the total inflation rate for the 1 years between 1807 and 1808, we use the following formula:

CPI in 1808 - CPI in 1807CPI in 1807
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

12.8 - 12.312.3
×
100
=
4%

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

• The first gaslight street lightning installed in London's Pall Mall.
• The Eylau battle between Napoleon and the Russian empire ends without a conclusive result: it is the first battle that Napoleon did not win.
• The US Congress announces a ban on the slave trade within America.
• Britain officially abolishes slavery within its empire, with a penalty fine of £120 per slave for ship captains.

### 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 1808 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 19 Jul. 2019, https://www.officialdata.org/UK-inflation-rate-in-1808.