Value of £100 from 1980 to 1981
£100 in 1980 is equivalent in purchasing power to about £111.87 in 1981. The pound had an average inflation rate of 11.87% per year between 1980 and 1981, producing a cumulative price increase of 11.87%.
This means that prices in 1981 are 1.12 times as high as average prices since 1980, according to the Office for National Statistics composite price index.
The inflation rate in 1980 was 17.99%. The inflation rate in 1981 was 11.87%. The 1981 inflation rate is higher compared to the average inflation rate of 3.68% per year between 1981 and 2025.
⌃
| Average inflation rate | 11.87% |
| Converted amount £100 base | £111.87 |
| Price difference £100 base | £11.87 |
| CPI in 1980 | 263.700 |
| CPI in 1981 | 295.000 |
| Inflation in 1980 | 17.99% |
| Inflation in 1981 | 11.87% |
| £100 in 1980 | £111.87 in 1981 |
How to calculate inflation rate for £100, 1980 to 1981
Our calculations use the following inflation rate formula to calculate the change in value between 1980 and 1981:
CPI in 1981 CPI in 1980
×
1980 GBP value
=
1981 GBP value
Then plug in historical CPI values. The U.K. CPI was 263.7 in the year 1980 and 295 in 1981:
295263.7
×
£100
=
£111.87
£100 in 1980 has the same "purchasing power" or "buying power" as £111.87 in 1981.
To get the total inflation rate for the 1 years between 1980 and 1981, we use the following formula:
CPI in 1981 - CPI in 1980CPI in 1980
×
100
=
Cumulative inflation rate (1 years)
Plugging in the values to this equation, we get:
295 - 263.7263.7
×
100
=
12%
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: “1980 pounds in 1981 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 16 May. 2025, https://www.officialdata.org/1980-GBP-in-1981.
Special thanks to QuickChart for their chart image API, which is used for chart downloads.
| Average inflation rate | 11.87% |
| Converted amount £100 base | £111.87 |
| Price difference £100 base | £11.87 |
| CPI in 1980 | 263.700 |
| CPI in 1981 | 295.000 |
| Inflation in 1980 | 17.99% |
| Inflation in 1981 | 11.87% |
| £100 in 1980 | £111.87 in 1981 |
