UK inflation rate in 1778: 2.90%

UK Inflation Calculator


Inflation in 1778 and Its Effect on Pound Value

Purchasing power decreased by 2.90% in 1778 compared to 1777. On average, you would have to spend 2.90% more money in 1778 than in 1777 for the same item.

In other words, £1 in 1777 is equivalent in purchasing power to about £1.03 in 1778.

The 1777 inflation rate was 0.00%. The inflation rate in 1778 was 2.90%. The 1778 inflation rate is higher compared to the average inflation rate of 2.12% per year between 1778 and 2019.

Inflation rate is calculated by change in the composite price index (CPI). The CPI in 1778 was 7.10. It was 6.90 in the previous year, 1777. The difference in CPI between the years is used by the Office for National Statistics to officially determine inflation.

Inflation from 1777 to 1778
Average inflation rate 2.90%
Converted amount (£1 base) £1.03
Price difference (£1 base) £0.03
CPI in 1777 6.900
CPI in 1778 7.100
Inflation in 1777 0.00%
Inflation in 1778 2.90%

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

How to Calculate Inflation Rate for £1, 1777 to 1778

This inflation calculator uses the following inflation rate formula:

CPI in 1778CPI in 1777
1777 GBP value
1778 GBP value

Then plug in historical CPI values. The UK CPI was 6.9 in the year 1777 and 7.1 in 1778:


£1 in 1777 has the same "purchasing power" or "buying power" as £1.03 in 1778.

To get the total inflation rate for the 1 years between 1777 and 1778, we use the following formula:

CPI in 1778 - CPI in 1777CPI in 1777
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

7.1 - 6.96.9

News headlines from 1777

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

  • George Washington's army defeats the British army at the Battle of Princeton.
  • The US becomes the first nation to abolish slavery, when it introduces its new Constitution
  • The US flag is used for the first time, in the battle at Cooch's Bridge, during American Revolutionary war
  • British colonies in America proclaimed independent from France

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 1778 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 19 Apr. 2019,

Special thanks to QuickChart for providing downloadable chart images. is a reference website maintained by the Official Data Foundation.

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