Value of £1 from 1865 to 1866
£1 in 1865 is equivalent in purchasing power to about £1.06 in 1866. The pound had an average inflation rate of 5.56% per year between 1865 and 1866, producing a cumulative price increase of 5.56%.
This means that prices in 1866 are 1.06 times as high as average prices in 1865, according to the Office for National Statistics composite price index.
The inflation rate in 1865 was 1.12%. The inflation rate in 1866 was 5.56%. The 1866 inflation rate is higher compared to the average inflation rate of 3.20% per year between 1866 and 2026.
⌃
| Average inflation rate | 5.56% |
|
Converted amount
£1 base | £1.06 |
|
Price difference
£1 base | £0.06 |
| CPI in 1865 | 9.000 |
| CPI in 1866 | 9.500 |
| Inflation in 1865 | 1.12% |
| Inflation in 1866 | 5.56% |
| £1 in 1865 | £1.06 in 1866 |
How to calculate inflation rate for £1, 1865 to 1866
Our calculations use the following inflation rate formula to calculate the change in value between 1865 and 1866:
CPI in 1866CPI in 1865
×
1865 GBP value
=
1866 GBP value
Then plug in historical CPI values. The U.K. CPI was 9 in the year 1865 and 9.5 in 1866:
9.59
×
£1
=
£1.06
£1 in 1865 has the same "purchasing power" or "buying power" as £1.06 in 1866.
To get the total inflation rate for the 1 years between 1865 and 1866, we use the following formula:
CPI in 1866 - CPI in 1865CPI in 1865
×
100
=
Cumulative inflation rate (1 years)
Plugging in the values to this equation, we get:
9.5 - 99
×
100
=
6%
Frequently asked questions
How much is £1 from 1865 worth in 1866?
£1 in 1865 has about the same buying power as £1.06 in 1866, based on the composite price index published by the Office for National Statistics. Prices in 1866 are 1.06 times as high as they were in 1865.
What was the inflation rate in 1865?
The U.K. inflation rate in 1865 was 1.12%, measured as the change in the composite price index from 1864 to 1865. See inflation in 1865 for more detail.
What has the average inflation rate been from 1865 to 1866?
Prices rose by an average of 5.56% per year between 1865 and 1866, a cumulative increase of 5.56%.
How is this calculated?
Divide the CPI in 1866 (9.5) by the CPI in 1865 (9), then multiply by the original amount: 9.5 ÷ 9 × £1 = £1.06. See the step-by-step formula above.
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.
You may use the following MLA citation for this page: “£1 in 1865 → £1.06 in 1866 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 9 Oct. 2026, https://www.officialdata.org/uk/inflation/1865?amount=1&endYear=1866.
Special thanks to QuickChart for their chart image API, which is used for chart downloads.
in2013dollars.com is a reference website maintained by the Official Data Foundation.
| Average inflation rate | 5.56% |
|
Converted amount
£1 base | £1.06 |
|
Price difference
£1 base | £0.06 |
| CPI in 1865 | 9.000 |
| CPI in 1866 | 9.500 |
| Inflation in 1865 | 1.12% |
| Inflation in 1866 | 5.56% |
| £1 in 1865 | £1.06 in 1866 |