Inflation calculator

Enter an amount and two years to see what that money would be worth in the other year, after the change in prices. The calculator uses official price indices from the Office for National Statistics and shows the rise in prices in total and on average each year.

£100.00 in 2000 is worth about £190.37 in 2025

£190.37

Prices rose 90.4% in total, about 2.61% a year. Index used: CPI (D7BT).

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Amount

From year 2025202420232022202120202019201820172016201520142013201220112010200920082007200620052004200320022001200019991998199719961995199419931992199119901989198819871986198519841983198219811980197919781977197619751974197319721971197019691968196719661965196419631962196119601959195819571956195519541953195219511950194919481947194619451944194319421941194019391938193719361935193419331932193119301929192819271926192519241923192219211920191919181917191619151914191319121911191019091908190719061905190419031902190119001899189818971896189518941893189218911890188918881887188618851884188318821881188018791878187718761875187418731872187118701869186818671866186518641863186218611860185918581857185618551854185318521851185018491848184718461845184418431842184118401839183818371836183518341833183218311830182918281827182618251824182318221821182018191818181718161815181418131812181118101809180818071806180518041803180218011800

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CalculateReset

How this was worked out

1. £100.00 × 138.4 ÷ 72.7 = £190.37
2. Total change in prices: 90.4%
3. Average a year: 2.61%
4. Index used: CPI (D7BT)

Was this right and useful?

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What the calculator assumes

• Prices changed in line with the index for the whole period.
• Each year uses the average index value for that calendar year, so the result is for the year as a whole, not a particular month.
• The latest year shown is the latest full year the ONS has published.
• The result is rounded to the penny.

Which index it uses

From 1988 onwards the calculator uses the Consumer Prices Index (CPI), the UK's main measure of inflation and the one the Bank of England's target is based on. CPI figures do not go back further than that.

When either year is before 1988, the calculator uses the ONS long-run composite price index for both years instead. It joins older measures of prices into one series, so that amounts from much earlier can be compared. Using one index for both years keeps the comparison consistent. The result line tells you which index was used.

Reading the result

If £100 in one year is worth £150 in a later year, prices rose by 50% between them. You would have needed £150 in the later year to buy what £100 bought in the earlier one. The average yearly rise spreads that change evenly across the years, with each year building on the last, so you can compare periods of different lengths.

Wages, house prices and savings rates usually move at different speeds from prices. A pay rise below inflation means you can buy less than before, even though the number on your payslip went up.

What it leaves out

• Changes within a year, month by month.
• Regional differences. The index is for the UK as a whole.
• Other measures, such as the Retail Prices Index, which some older contracts and student loans still use.

To see how savings could grow against rising prices, use the compound interest calculator. The take-home pay calculator shows what a salary leaves you now, and the percentage calculator works out the percentage change between any two figures.

Official sources

• Inflation and price indices on the Office for National Statistics
• CPI index (series D7BT) on the Office for National Statistics

Every figure is listed with its source on our sources page.

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