UK inflation rate in 1999: 1.54%

UK Inflation Calculator


Inflation in 1999 and Its Effect on Pound Value

Purchasing power decreased by 1.54% in 1999 compared to 1998. On average, you would have to spend 1.54% more money in 1999 than in 1998 for the same item.

In other words, £1 in 1998 is equivalent in purchasing power to about £1.02 in 1999.

The 1998 inflation rate was 3.43%. The inflation rate in 1999 was 1.54%. The 1999 inflation rate is lower compared to the average inflation rate of 2.74% per year between 1999 and 2019.

Inflation rate is calculated by change in the composite price index (CPI). The CPI in 1999 was 652.50. It was 642.60 in the previous year, 1998. The difference in CPI between the years is used by the Office for National Statistics to officially determine inflation.

Inflation from 1998 to 1999
Average inflation rate 1.54%
Converted amount (£1 base) £1.02
Price difference (£1 base) £0.02
CPI in 1998 642.600
CPI in 1999 652.500
Inflation in 1998 3.43%
Inflation in 1999 1.54%

UK inflation chart from 1988 to 2017. Based on the UK Consumer Price Index.

How to Calculate Inflation Rate for £1, 1998 to 1999

This inflation calculator uses the following inflation rate formula:

CPI in 1999CPI in 1998
1998 GBP value
1999 GBP value

Then plug in historical CPI values. The UK CPI was 642.6 in the year 1998 and 652.5 in 1999:


£1 in 1998 has the same "purchasing power" or "buying power" as £1.02 in 1999.

To get the total inflation rate for the 1 years between 1998 and 1999, we use the following formula:

CPI in 1999 - CPI in 1998CPI in 1998
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

652.5 - 642.6642.6

News headlines from 1998

Politics and news often influence economic performance. Here's what was happening at the time:

  • Osama Bin Laden declares a Jihad against Jews and Crusaders.
  • The Good Friday Agreement is accepted in a referendum in Northern Ireland.
  • President of the US Bill Clinton admits that he had an "improper physical relationship" with an intern and then denied it in the same day. The event has come to be known as the Monica Lewinsky scandal.

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 2017, which is based on The Bank of England's forecast.

You may use the following MLA citation for this page: “Inflation Rate in 1999 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 18 Apr. 2019,

Special thanks to QuickChart for providing downloadable chart images. is a reference website maintained by the Official Data Foundation.

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