Value of £100 from 2005 to 2006
£100 in 2005 is equivalent in purchasing power to about £103.20 in 2006. The pound had an average inflation rate of 3.20% per year between 2005 and 2006, producing a cumulative price increase of 3.20%.
This means that prices in 2006 are 1.03 times as high as average prices since 2005, according to the Office for National Statistics composite price index.
The inflation rate in 2005 was 2.82%. The inflation rate in 2006 was 3.20%. The 2006 inflation rate is lower compared to the average inflation rate of 3.29% per year between 2006 and 2025.
⌃
| Average inflation rate | 3.20% |
| Converted amount £100 base | £103.20 |
| Price difference £100 base | £3.20 |
| CPI in 2005 | 757.300 |
| CPI in 2006 | 781.500 |
| Inflation in 2005 | 2.82% |
| Inflation in 2006 | 3.20% |
| £100 in 2005 | £103.20 in 2006 |
How to calculate inflation rate for £100, 2005 to 2006
Our calculations use the following inflation rate formula to calculate the change in value between 2005 and 2006:
CPI in 2006 CPI in 2005
×
2005 GBP value
=
2006 GBP value
Then plug in historical CPI values. The U.K. CPI was 757.3 in the year 2005 and 781.5 in 2006:
781.5757.3
×
£100
=
£103.20
£100 in 2005 has the same "purchasing power" or "buying power" as £103.20 in 2006.
To get the total inflation rate for the 1 years between 2005 and 2006, we use the following formula:
CPI in 2006 - CPI in 2005CPI in 2005
×
100
=
Cumulative inflation rate (1 years)
Plugging in the values to this equation, we get:
781.5 - 757.3757.3
×
100
=
3%
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: “£100 in 2005 → 2006 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 17 May. 2025, https://www.officialdata.org/2005-GBP-in-2006?amount=100.
Special thanks to QuickChart for their chart image API, which is used for chart downloads.
| Average inflation rate | 3.20% |
| Converted amount £100 base | £103.20 |
| Price difference £100 base | £3.20 |
| CPI in 2005 | 757.300 |
| CPI in 2006 | 781.500 |
| Inflation in 2005 | 2.82% |
| Inflation in 2006 | 3.20% |
| £100 in 2005 | £103.20 in 2006 |
