£100 in 1785 is worth £104.17 in 1783

Buying power of £100 in 1783

This chart shows a calculation of buying power equivalence for £100 in 1783 (price index tracking began in 1750).

For example, if you started with £100, you would need to end with £104.17 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

According to the Office for National Statistics, each of these GBP amounts below is equal in terms of what it could buy at the time:

This conversion table shows various other 1783 amounts in 1785 pounds, based on the 4.17% change in prices:

How to calculate inflation rate for £100, 1783 to 1785

Our calculations use the following inflation rate formula to calculate the change in value between 1783 and 1785:

Then plug in historical CPI values. The U.K. CPI was 7.2 in the year 1785 and 7.5 in 1783:

£100 in 1785 has the same "purchasing power" or "buying power" as £104.17 in 1783.

To get the total inflation rate for the 2 years between 1783 and 1785, we use the following formula:

Plugging in the values to this equation, we get:

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 the current year, which is based on The Bank of England's forecast.

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