Monu Tools

Inflation Calculator

See how the purchasing power of an amount changes between two years, using the official German consumer price index.

How to use the Inflation

  1. 01

    Enter the amount you want to compare.

  2. 02

    Choose the starting year and the target year.

  3. 03

    Read the equivalent value, the total inflation and the average annual rate.

How the inflation calculator works

This tool compares the purchasing power of an amount between two years using the official German consumer price index, and reports both the total change and the equivalent average annual rate.

Inflation means money buys less over time as prices rise. The same 100 EUR stretches further in an earlier year than a later one, and this tool quantifies that gap so you can see the real change in value.

The calculation

The calculation scales your amount by the ratio of the consumer price index in the two years. The total change is that ratio, and the average annual rate is the constant yearly inflation that would produce the same overall change.

Where the data comes from

The data is the official consumer price index (Verbraucherpreisindex) from the German Federal Statistical Office (Destatis), using annual averages with the base year 2020 set to 100.

How to read the result

The result tells you how much money you would need in the target year to have the same purchasing power as the original amount in the starting year, which is a clear way to compare wages, prices or savings across time.

It is handy for putting an old salary or price in today's terms, or seeing why a fixed amount loses ground over the years.

An estimate based on official figures

The figures come from official index data and the tool runs entirely in your browser. Index averages describe the overall basket of goods, so your personal experience of price changes may differ. Treat the result as an estimate rather than a precise measure of your own costs.

Frequently asked questions

How is inflation calculated here?

The amount is scaled by the ratio of the consumer price index in the two years. The total change and the equivalent average annual rate are derived from that same ratio.

Where does the data come from?

From the official consumer price index (Verbraucherpreisindex) of the German Federal Statistical Office, using annual averages with base 2020 = 100.

What does the result mean?

It shows how much money you would need in the target year to have the same purchasing power as the original amount in the starting year.

What is the difference between total and average inflation?

Total inflation is the whole price change between the two years. The average annual rate is the steady yearly rate that, compounded, produces that same total change.

Why does money lose value over time?

When the general price level rises, each unit of money buys less. Over years even modest inflation compounds, so a fixed amount of cash steadily loses purchasing power.

Sources

This tool is for general information only and is not financial, tax, or legal advice. Results are estimates that depend on your situation and current rules, so check the official source or a qualified professional before you act.

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