£100 in 1771 → £15,223.88 in 2015

UK Inflation Calculator

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UK Inflation Rate, 1771-2015 (£100)

According to the Office for National Statistics composite price index, the pound experienced an average inflation rate of 2.08% per year. Prices in 2015 are 15123.9% higher than prices in 1771.

In other words, £100 in the year 1771 is equivalent in purchasing power to £15,223.88 in 2015, a difference of £15,123.88 over 244 years.

The inflation rate in 2015 was 0.99%.

Inflation from 1771 to 2015
Cumulative price change 15123.88%
Average inflation rate 2.08%
Price difference (£100 base) £15,123.88
CPI in 1771 6.7
CPI in 2015 1020


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


How to calculate the inflation rate for £100, 1771 to 2015

This inflation calculator uses the following inflation rate formula:

CPI in 2015 / CPI in 1771 * 1771 GBP value = 2015 GBP value

Then plug in historical CPI values. The UK CPI was 6.7 in the year 1771 and 1020 in 2015:

1020 / 6.7 * £100 = £15,223.88

£100 in 1771 has the same "purchasing power" as £15,223.88 in 2015.


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: “1771 pounds in 2015 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 24 May. 2018, https://www.officialdata.org/1771-GBP-in-2015.


» Read more about inflation.