Inflation calculator
What money from the past is worth today and how much purchasing power it loses over the years. Using Eurostat's official price indices for the euro area, the European Union and its main countries.
What you need to buy the same, month by month
How to work out what money from the past is worth today
Choose the area, the amount and the two months you want to compare. The calculator uses Eurostat's official harmonised index of consumer prices (HICP) and tells you what that amount is worth on the other date, how much prices rose in total and per year on average, and how much purchasing power was lost.
Example: with the euro area HICP, 1,000 in January 2015 was worth 1,289.91 in January 2025. Prices rose 29.0% over those ten years, 2.58% a year on average, and the same money bought 22.5% less. Between January 2021 and January 2023 alone they rose 14.2%.
How it is calculated
- Equivalent = amount × price index for the end month ÷ index for the start month.
- Cumulative inflation = end index ÷ start index − 1. Annual average = (end index ÷ start index)^(12 ÷ months) − 1.
- Purchasing power lost = 1 − start index ÷ end index.
Assumptions
- Eurostat's harmonised index of consumer prices (HICP), monthly, base 2025 = 100. The latest month published may be provisional.
- The harmonised HICP can differ slightly from each country's national CPI, which uses its own method.
- It measures the average change in prices: your personal inflation depends on what you spend money on.
Frequently asked questions
How do you adjust money for inflation?
Multiply the amount by the price index for the end month and divide by the index for the start month. If the index went from 100 to 129, 1,000 then is worth 1,290 now.
What is the HICP?
The harmonised index of consumer prices, calculated by every EU country with a common method so they can be compared, and published by Eurostat. National CPIs use their own methods, so figures can differ slightly.
What does purchasing power lost mean?
How much less you can buy with the same amount of money. If prices rise 29%, 1,000 buys what used to cost about 775: 22.5% less.
Why doesn't my inflation match the official figure?
The index measures the average change in a basket of goods and services. If you spend more than average on housing, energy or food, your personal inflation can be higher or lower.
Can I calculate backwards?
Yes. If you enter a “To” date earlier than “From”, you will see what an amount today was worth in the past. For example, to find which 2015 salary matches your current one.
Terms used in this calculation
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