£100 in 2025 is worth £100.93 today

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Value of £100 from 2025 to 2026

£100 in 2025 is equivalent in purchasing power to about £100.93 today. The pound had an average inflation rate of 0.93% in the last 12 months. As a result, the real value of a pound has been decreasing recently.

This means that today's prices are 1.01 times as high as average prices since 2025, according to the Office for National Statistics composite price index. A pound today only buys 99.079% of what it could buy back then.

The inflation rate in 2025 was 3.25%. The current inflation rate compared to the end of last year is now 0.93%. If this number holds, £100 today will be equivalent in buying power to £100.93 next year.

⌃
Inflation from 2025 to 2026
Average inflation rate0.93%
Converted amount
£100 base		£100.93
Price difference
£100 base		£0.93
CPI in 20251,454.235
CPI in 20261,467.818
Inflation in 20253.25%
Inflation in 20260.93%
£100 in 2025£100.93 in 2026
Recent GBP inflation
Annual Rate, the Office for National Statistics CPI
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How to calculate inflation rate for £100 since 2025

Our calculations use the following inflation rate formula to calculate the change in value between 2025 and today:

CPI today CPI in 2025
×
2025 GBP value
=
Today's value

Then plug in historical CPI values. The U.K. CPI was 1454.2353352916236 in the year 2025 and 1467.8182740281504 in 2026:

1467.81827402815041454.2353352916236
×
£100
=
£100.93

£100 in 2025 has the same "purchasing power" or "buying power" as £100.93 in 2026.

To get the total inflation rate for the 1 years between 2025 and 2026, we use the following formula:

CPI in 2026 - CPI in 2025CPI in 2025
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

1467.8182740281504 - 1454.23533529162361454.2353352916236
×
100
=
1%

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 2025 → 2026 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 6 Jan. 2026, https://www.officialdata.org/uk/inflation/2025?amount=100&endYear=2026.

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.

Ian Webster

About the author

Ian Webster is an engineer and data expert based in San Mateo, California. He has worked for Google, NASA, and consulted for governments around the world on data pipelines and data analysis. Disappointed by the lack of clear resources on the impacts of inflation on economic indicators, Ian believes this website serves as a valuable public tool. Ian earned his degree in Computer Science from Dartmouth College.

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Inflation from 2025 to 2026
Average inflation rate0.93%
Converted amount
£100 base		£100.93
Price difference
£100 base		£0.93
CPI in 20251,454.235
CPI in 20261,467.818
Inflation in 20253.25%
Inflation in 20260.93%
£100 in 2025£100.93 in 2026