Value of £100 from 1984 to 1985
£100 in 1984 is equivalent in purchasing power to about £106.08 in 1985. The pound had an average inflation rate of 6.08% per year between 1984 and 1985, producing a cumulative price increase of 6.08%.
This means that prices in 1985 are 1.06 times as high as average prices since 1984, according to the Office for National Statistics composite price index.
The inflation rate in 1984 was 4.98%. The inflation rate in 1985 was 6.08%. The 1985 inflation rate is higher compared to the average inflation rate of 3.44% per year between 1985 and 2025.
⌃
| Average inflation rate | 6.08% |
| Converted amount £100 base | £106.08 |
| Price difference £100 base | £6.08 |
| CPI in 1984 | 351.800 |
| CPI in 1985 | 373.200 |
| Inflation in 1984 | 4.98% |
| Inflation in 1985 | 6.08% |
| £100 in 1984 | £106.08 in 1985 |
How to calculate inflation rate for £100, 1984 to 1985
Our calculations use the following inflation rate formula to calculate the change in value between 1984 and 1985:
CPI in 1985 CPI in 1984
×
1984 GBP value
=
1985 GBP value
Then plug in historical CPI values. The U.K. CPI was 351.8 in the year 1984 and 373.2 in 1985:
373.2351.8
×
£100
=
£106.08
£100 in 1984 has the same "purchasing power" or "buying power" as £106.08 in 1985.
To get the total inflation rate for the 1 years between 1984 and 1985, we use the following formula:
CPI in 1985 - CPI in 1984CPI in 1984
×
100
=
Cumulative inflation rate (1 years)
Plugging in the values to this equation, we get:
373.2 - 351.8351.8
×
100
=
6%
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: “1984 pounds in 1985 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 2 Jun. 2025, https://www.officialdata.org/1984-GBP-in-1985.
Special thanks to QuickChart for their chart image API, which is used for chart downloads.
| Average inflation rate | 6.08% |
| Converted amount £100 base | £106.08 |
| Price difference £100 base | £6.08 |
| CPI in 1984 | 351.800 |
| CPI in 1985 | 373.200 |
| Inflation in 1984 | 4.98% |
| Inflation in 1985 | 6.08% |
| £100 in 1984 | £106.08 in 1985 |
